3 ASSIGNMENTS > 3 separate files

*NO copy, paste, or Plagiarism* Include references*

*Cover and reference page NOT needed*

*Answer all questions, stay on topic*


ECO2071 week 3


For each of the following situations, the market system has failed and/or just will not allocate resources efficiently:

· Situation 2: Some states allow students to attend certain universities within the state tuition free if they are a resident of that state. As a result of this policy, the state’s population is more educated and more productive in the workplace than many other states.

· Situation 3: You live in a small subdivision with several residents. The subdivision has one short dirt road that provides access to all the homes. Bob, one of the residents of the subdivision, just inherited a large sum of money and decides to have the road in the subdivision paved. After the paving, Bob asked the other residents to pay their fair share of the costs for the paving, but they all refused.


· Using the scenarios above, prepare a 2 page Microsoft Word document that addresses 2 of the above scenarios

· Include a summary section in your report that contains 5-7 bullet points identifying your major findings or conclusions of your paper.


*NO copy, paste, or Plagiarism* Include references*

*Cover and reference page NOT needed*

*Answer all questions, stay on topic*


Week 4 Discussion-

The market structures influence how price and output decisions are made by the firms in their respective structure. In all market structures, one of the primary goals is to maximize profits or minimize losses.

One of the major differences between these market structures is how price and output decisions are made, which in turn depends on the characteristics of each market structure. There are four market structures:

1. Perfect competition

2. Monopolistic competition

3. Oligopoly

4. Monopoly


1. Construct a table that describes the various characteristics of each market structure.

2. Identify a firm for each of these market structures and explain why each firm belongs in the market structure identified.

3. Using Microsoft Excel, construct a graph for each of the market structures and explain how price and output decisions are made in each structure and how they differ.

4. How is marginal analysis used in the price and output decisions of firms in the various market structures?


· Prepare a 2page Microsoft Word document that addresses the questions above.

· Include a summary section in your report that contains 5-7 bullet points identifying your major findings or conclusions of your paper.

*NO copy, paste, or Plagiarism* Include references*

*Cover and reference page NOT needed*

*Answer all questions, stay on topic*


Week 4 Project

Market Forms

The following questions address some of the price and output decisions faced by firms other than those found in perfect competition. Some numbers may be rounded.

Table 1-a
  Average Fixed cost Average Variable Cost Average Total Cost
1  $   180.00  $ 135.00  $    315.00
2  $     90.00  $ 127.50  $    217.50
3  $     60.00  $ 120.00  $    180.00
4  $     45.00  $ 112.50  $    157.50
5  $     36.00  $ 111.00  $    147.00
6  $     30.00  $ 112.50  $    142.50
7  $     25.71  $ 115.70  $    141.41
8  $     22.50  $ 121.90  $    144.40
9  $     20.00  $ 130.00  $    150.00
10  $     18.00  $ 139.50  $    157.50


Table 1-a (continued)

  Marginal Cost Price Total Revenue Marginal Revenue
0    $ 345.00    
1    $ 300.00    
2    $ 249.00    
3    $ 213.00    
4    $ 189.00    
5    $ 165.00    
6    $ 144.00    
7    $ 126.00    
8    $ 111.00    
9    $   99.00    
10    $   87.00    


1. Complete Table 1. Summarize your calculations and use Microsoft Excel.

2. Using Excel, draw one graph showing average fixed costs, average variable costs, average total costs, marginal revenue, and marginal costs.

3. Using the data in the table and on your graph, what is the profit maximizing, or loss minimizing level of output?  Explain and justify your answers.

4. What is a normal profit?  What is an economic profit? Explain your answer using examples. Are normal profits being earned in this example? Are economic profits present for this firm in this example?  Explain your answers.

5. Given the data in the table and the graph, how could you determine or identify the optimal plant size?

6. What is the difference between explicit and implicit cost?  Explain your answers.

7.  How would we determine if a cost is a fixed cost or a variable cost?

Present your analysis in Microsoft Excel format. Enter non-numerical responses in the same worksheet using textboxes.

environment economics

Question 1

Suppose that that inverse demand function for a depletable resource is given by:

p=10– q

where is the price and is the quantity. Assume that 6 units of the resource are available to be allocated between two periods. Assume that the marginal cost of supplying the resource in each period is $4.

a) Can you modify your diagram so that the statically efficient allocation and dynamically efficient allocation of the resource are the same? If you can, explain the situation by re-drawing a diagram. If you cannot, explain why it is not possible.

Question 2

Suppose that a community is trying to decide how much to spend preserving biodiversity, a public good that provides important ecosystem services. There are two groups (Group 1 and Group 2) in the community and their inverse demand functions are given as:

p1=1002q1 and p2=80–q2 where pi (i = 1,2) is the price each of the community groups is willing to pay and qi (i = 1,2)

is the amount of biodiversity preserved.

a) Draw a diagram illustrating the demand curves for Groups 1 and 2 and the market

demand curve for preserving biodiversity. You need to draw three separate diagrams.

Question 3

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a) If the two countries operate independently, how much CO2 emssions will be reduced using each option? Use a diagram to explain your reasoning.

b) Suppose that a market of transferable emission permits is created, so that it allows Countries A and B to trade permits to achieve the overall emission reduction target of 250 million tons. Who has an interest in buying permits? Who has an interest in selling permits? What is the range for the permit price both countries agree to trade their permits? Use a diagram to explain your reasoning.

c) If all permits are initially allocated to Country A, will your result in part b change? Discuss.







Generally, marketing has been developing along with the world which revolves around it. From the perspective that marketing never occupies an exact science, there has been strategic mechanisms that are generally employed to improve the marketing mix as well as the marketing strategies utilized within the respective marketing field. Such mechanisms include social media which have been one of the rampant existences within networking marketing. Social media has been a key role within the worldwide marketing being experienced allover the globe. This runs from the newspapers, television to social media as imperative parameters towards moldering the marketing strategy of any given business organization.

Essentially, the issues concerning the customer services are normally regarded as the solemn issues within the business setting of any given business organization. This literally implies that the people learning such business organizations ought to employ individuals who are professionally qualified in finding appropriate remedies for such issues. In the modern world, one of the great industries which have highly been positively as well as negatively impacted by the internet is the marketing (Malik, 2018). It is evident that once what was absolutely paper marketing has now changed into a digital marketing which is entirely influenced by the social media. That which was once a fighter for the air time has been transformed to a hunter for low hanging keywords. The online world has entirely been driven entirely to a new transformation to marketing. Social media can be regarded as one of the sectors in the online world which has been transformed to manner in which the marketing operates. There are numerous ways in which social media may influence the marketing in the modern world in today’s business settings as well as associative business environment (David, 2017). In fact, social media has numerous positive diverse ways in which it has transformed the marketing. Nevertheless, the negative ways may not be disregarded.

Literature Review

Facilitating proper customer services can be termed as one of the key priorities of business settings. This can be utilized to retain their current customers as well as attract the customers in venturing into the business. Several studies in various literature books make efforts to explain the importance of social media in marketing across the world. Pearl M (2018) in his book How Social Media has Changed Marketing tend to explain how customer services have massively contributed to the transformation of the marketing field on a global basis. He argues that social media has intensively transformed the manner in which the customer service generally operates. In the world today, customers are seen to have a capability of engaging with their respective prestigious brands online through a quick as well as easy response concerning the items. The social media has in addition impacted the manner in which business organizations cooperate with their respective consumers concerning their merchandise through online websites (Pearl, 2018). This have apprehensively helped such business organizations in greatly improving their marketing strategies.

In their book, Brands in Glass Houses; How to Embrace Transparency and Grow Your Business, Dechay Watts and Debbie Williams (2013), analyze how social media has changed the transparency of the analytics which is one of the cornerstones of the marketing in most of the business organizations. Generally, analytics can be regarded as game changer within the marketing world. Marketing strategies were normally realized with an increment of sales before the digital age chipped in. Through the social media marketing, analytics are more reliable which exhibit the reason behind customer’s ability to create purchases.

Fields & Ziska (2016) in their book, Collective Creativity for Responsible and Sustainable Business Practice, explains how the social media have heightened creativity, analytics and future of the marketing in any business organization. These two authors views marketing without social media as to restrict the access to data which they regard as pretty limited. They further examine how social media has moldered creativity, analytics as well as future of marketing which are the key parameters towards the success of marketing in the whole world. Analytics generally shows the strengths as well as the weaknesses of market segments hence implementing a desirable marketing mix which may be used to gain competitive advantage in the respective business organization. Essentially, the social media information has enhanced the business organizations the access to actual buying behavior. This helps the business organization communicate with the prospective customers as well as perceiving to what they actually need (Sophia, 2017). Besides, social media has facilitated the creation of ads. Therefore, rather than creating the vague promises, the business organization may facilitate on the specific ones hence improving their marketing strategy.


From the above assessment, it is clear to conclude that the business industry is niching down. This therefore calls for digital equipment, detailed analytics as well as effective marketing attribution which implicates that the business organization can at last focus on the targeted persons. This therefore shows the very many relevance of the social media within the marketing world of the business setting. There is therefore an essential need to focus on the social media while concentrating on the key technics to involved on the marketing strategy.


David Meerman Scott (2017), The New Rules of Marketing and PR, How to Use Social Media, pp. 123.

Dechay Watts & Debbie Williams (2013), Brands in Glass Houses, How to Embrace Transparency and Grow Your Business, pp. 226.

Fields & Ziska (2016), Collective Creativity for Responsible and Sustainable Business Practice, pp. 205.

Malik Shahzad Shabbir (2018), Social Media Marketing, pp. 623.

Pearl M. (2018), How Social Media Has Changed Marketing, Social Media, pp. 156.

Sophia Dagnon (2017), How Social Media Changed the Marketing World Forever, pp. 312.

Motor Control and Learning


California State University – Northridge

Kinesiology Department

377 – Motor Control and Learning

Student: <your name here>


< Provide a paragraph explaining why you selected the skill of juggling/cup stacking. Add any other information you find appropriate. This section should end with a sentence stating the 3 principles selected and underlined. For instance: … the three principles I selected are: 1) name of the principle (Chapter XX); 2) name of the principle (Chapter XX); and 3) name of the principle (Chapter XX).>

The stages of learning

<In this section, you will describe how you moved through the 3 stages of learning as described by Fitts and Posner (Chapter 12). Describe in detail how you moved from stage 1 to stage 2, then from stage 2 to stage 3, and finally how you remained in stage 3 towards the end (just prior you recorded your video). If needed, review chapter 12 as it will help you to develop this section.>

Principle 1: <name of the principle here>

<Describe what the principle 1 is and ensure to cite our textbook. Describe how principle 1 helped you to learn the selected skill. If you feel the principle was not helpful, then talk about it providing possible reasons why.>

Principle 2: <name of the principle here>

<Describe what the principle 2 is and ensure to cite our textbook. Describe how principle 2 helped you to learn the selected skill. If you feel the principle was not helpful, then talk about it providing possible reasons why.>

Principle 3: <name of the principle here>

<Describe what the principle 3 is and ensure to cite our textbook. Describe how principle 3 helped you to learn the selected skill. If you feel the principle was not helpful, then talk about it providing possible reasons why.>


<In this section, you will wrap things up summarizing your learning experience. >


Last Name, F. M. (Year). Article Title. Journal Title, Pages From – To.

Last Name, F. M. (Year). Book Title. City Name: Publisher Name.


Checklist (place an X inside the brackets below)

[ ] I am full aware of the student misconduct policy adopted in this course (refer to our syllabus for full description); which includes, but limited to, cheating, plagiarism, or other forms of academic dishonesty that are intended to gain unfair academic advantage.

[ ] I am full aware that borrowing someone else’s paper and writing a paper based on that person’s paper constitutes PLAGIARISM and, in turn, a violation of the CSUN Student Conduct Code.

[ ] I am full aware that this paper will be submitted via Turnitin.com, which is an automated system that instructors can use to quickly and easily compare each student’s assignment with billions of websites, as well as an enormous database of student papers that grows with each submission. Accordingly, you will be expected to submit assignments through the Canvas Assignment Tool in electronic format. After the assignment is processed, as an instructor I receive a report from turnitin.com that states if and how another author’s work was used in the assignment. For a more detailed look at this process, visit http://www.turnitin.com.

Type your name in the field below to acknowledge you read and understand the terms above.

Your name: <name>


LT – Appendix C (Principles of Motor Learning)

A few things to consider:

· The PMLs will be an integral part of the Learning Task Assignment; not only when crafting the final reflection piece, but also when practicing the chosen skill.

· When writing your paper (reflection piece), you will be required pick three(3) of the principles below (in addition to the “Stages of Learning” principle) and discuss how each of the three principles helped you to move through the states of learning. Note that you MUST pick three principles from the list below. Your paper will be returned if any of the three principles you selected is not in the list below.

· The “stages of learning” principle, DOES NOT count as one of the three principles you will be selecting. The stages of learning principle will be a separate section of your paper. Thus, you will be discussing 4 principles as part of your paper. The “stages of learning” (cognitive, associative, autonomous) + the 3 other principles coming from the list below.

· Take some time to study this Quizlet set (Links to an external site.)Links to an external site. to improve your knowledge of MLPs.


Motor Learning Principles (MLP) you should consider when practicing the chosen skill:

1. [CH07] Speed-accuracy trade-off principle

A characteristic of motor skill performance in which the speed at which a skill is performed is influenced by movement accuracy demands. The trade-off is that increasing speed yields decreasing accuracy, and vice versa.

2. [CH09] Action-effect principle (hypothesis) – internal vs external focus

The proposition that actions are best planned and controlled by their intended effects. When related to attention focus, this hypothesis proposes that the learning and performance of skills are optimized when the performer’s attention is directed to the intended outcome of the action rather than on the movements themselves.

3. [CH11] Encoding specificity principle

A memory principle that indicates the close relationship between encoding and retrieval memory processes. It states that memory test performance is directly related to the amount of similarity between the practice and the test contexts; i.e., the more similarity, the better the test performance will be.

4. [CH13] Transfer of learning principle – positive or negative

The influence of prior learning on the learning of a new skill or the performance of a skill in a new context.

5. [CH14] Augmented feedback principle – concurrent, terminal, etc.

A generic term used to describe information about a performance that supplements the sensory feedback and comes from a source external to the performer; it is sometimes referred to as extrinsic or external feedback. 

6. [CH14] Cognitive mediation theory (principle)

A theory for explaining the benefit of a demonstration proposing that when a person observes a skilled model, the person translates the observed movement information into a cognitive code that the person stores in memory and uses when the observer performs the skill.

7. [CH16] Practice variability principle – random vs blocked practice

The memory and performance disruption (i.e., interference) that results from performing multiple skills or variations of a skill within the context of practice.

8. [CH17] Distribution of practice principle – Distributed vs Massed

Distributed is a practice schedule in which the amount of rest between practice sessions or trials is relatively long. Massed is a practice schedule in which the amount of rest between practice sessions or trials is very short.

9. [CH17] Overlearning

Practice that continues beyond the amount needed to achieve a certain performance criterion.

10. [CH18] Whole vs part practice principle (more info here (Links to an external site.)Links to an external site.)

Skills that are high in organization and low in complexity are best served through whole practice. The part practice method generally involves breaking down the skill into natural parts or segments, practicing those parts separately until they are learned, and then integrating them to perform the skill in its entirety.


Below, you find the paper written by Dr. Denny in which she discusses the application of several MLPs in coaching volleyball. YOU MUST READ THE ARTICLE BELOW AND COMPLETE THE ACTIVITY RELATED TO THE ARTICLE – REFER TO CANVAS > MODULES > WEEK 01.

· Following each principle, I provide my own comments. The purpose of this article (and my comments) is to help you when completing the Learning Task assignment

· The original titles have been modified to match my assignment


Applying Motor Learning Principles in Coaching Volleyball

By Vickie Grooms Denny, Ph.D.

Journal: Coaching Volleyball, April/May 2010

Coaching volleyball is enhanced when coaches draw from a variety of disciplines to assist in teaching skill development. The discipline of motor learning focuses on the acquisition of motor skills and/or the improvement of motor skills and involves principles that can be implemented by coaches to aid in volleyball skill acquisition. Coaches using principles from motor learning literature will enable players to reach their full potential in learning and developing volleyball skills leading to more effective performance on the court. The following is a two-part series, summarizing various principles from motor learning research and making applications for coaching the sport of volleyball.

Principle #1: Encoding specificity principle (The Practice Conditions Should Be Like the Game)

It has been stated that if you want to learn how to play the game, then play the game. In motor learning, this is a memory principle called the “encoding specificity principle” which suggests that the more closely aligned the practice context is to the game context, the better the game performance. For volleyball coaches, this means striving to make the practice conditions as much like the game conditions as possible. For example, if you know you will be playing in a gym with a very low ceiling, practice passing balls at a lower level. If you are going to face a big middle hitter who cuts the angles in your next match, then have someone hitting those angles in practice. If you want your players to perform well during stressful games, set up similar pressure situations during practice. For example, playing loud music, making bad calls, or putting the server on the end-line to serve for game point after a long rally, are all examples of making practice more like the game. Practices would include everything and anything that could possibly be experienced during the game. As a coach, look for ways to guarantee players have already practiced everything before they actually see it in the real game, and always be analyzing practices by evaluating how well you are training your players for actual game performance.

My own comments:

The practice conditions should approximate as much as possible the test conditions. In practicing the chosen skill, consider this principle. Because you will be required to video record yourself, it is important you video record yourself a couple of times while practicing. Performers tend to get nervous when they find out they have to perform in front of other people and/or in front of the camera.

In addition, it is essential you are consistent when comes to equipment and location. You must choose the equipment that will be used during practice asap.

If juggling is your choice, then you must decide whether to use bean bags, balls, or any other object. I strongly advise you to choose the small bean bags you can find in local toy stores or Amazon ( https://goo.gl/yvaWU5 (Links to an external site.)Links to an external site.). 

If speed cup stacking is your choice, you must decide which kind of cups you will use for practice. Last time I checked, this set of cups (https://goo.gl/QrJZU9 (Links to an external site.)Links to an external site. ) was less than $5 on Amazon. Do NOT choose regular plastic cups as they will negatively affect your performance.

Principle #2: Practice variability principle – The Practice Conditions Should Provide for Variability (blocked vs random)

A second motor learning principle that is closely related to the encoding principle is called the “contextual interference principle” which stresses that random types of practice conditions are usually best. For example, if you are working on passing, it is best not to just practice passing from the same spot over and over again. This is called block practice and is not at all like the game of volleyball. How often does the player stand in one spot passing ten balls in a row from the same server from the same area? In random practice, the player might be asked to serve-receive 10 different types of serves from 10 different places from several different types of servers on the court. This random practice schedule best prepares passers to receive in the game. A further application would be after serve-receive, have players practice coming in for different types of sets and hits along the net with a full team coverage formation. Random practice has been proven to be effective in most situations. The only time random practice is discouraged is with beginners. For beginning players, coaches should start with a block schedule, practicing the same skill in the same way under the same condition repeatedly. The problem with most coaches, however, is that they continue this blocked practice schedule long after the athlete has acquired the basic skill pattern. Once the basic skill is demonstrated, random practice should be introduced.

My own comments:

Random practice variability is more useful when learning “open skills”. Both juggling and speed cup stacking are considered “closed skills”, and, therefore, requires blocked practice. With open skills, the environmental features determine when to begin the action. In basketball, for instance, when dribbling the ball toward the basket while opponents are trying to steal the ball. This is an example of “open skill” since the features of the environment are not predictable. On the other hand, the free-throw shooting in basketball is considered a “closed skill”. The features of the environment are predictable and the player decides when to initiate the action.

Principle #3: Learning Occurs in Three Distinct Stages

Motor learning is complex and consists of three distinct stages. The cognitive stage is when the learner creates a mental picture of the skill to be executed along with processing the visual, kinesthetic, and auditory cues needed for the skill. Performance during this initial stage is full of questions and errors as the learner attempts to get an idea of how to do the skill. During the second stage, called the associative stage, the learner begins to understand how to do the skill and “associates” the movement with environmental cues. This stage is sometimes called the refining stage since learners begin to narrow the motor response and identify and correct errors on their own. The final stage of motor learning is termed the autonomous stage since the performance of the skill is now automatic. At this stage the learned skill is now a habit, requiring little attention. In order to reach this highest level, many years of practice are needed, and not all performers will achieve this final stage. For coaches, it is important to identify which stage a player is present since different stages require different coaching skills. During the initial cognitive stage, appropriate and timely feedback is needed to help the novice performer understand how to do the skill and how to correct errors. The coach is providing lots of encouragement along with appropriate feedback during the cognitive stage. During the associative stage, the coach’s role shifts towards refining techniques. During this stage, the coach waits and allows the player to identify his or her own performance errors and correction. While the emphasis is on refinement, there are ample opportunities for practice to develop the consistency of the skill performance. Working with athletes in the final autonomous stage, the role of the coach again is different. Now the emphasis is on developing strategies and tactics for using the skill in a variety of game situations.

My own comments:

Note that I do not consider the stages of learning as a motor learning principle per se. I treat the stages of learning as a separate section of the Reflection Paper (please refer to this assignment for more information).

Principle #4: Transfer of learning principle (Consider Transfer of Learning When Teaching New Motor Skills)

Transfer of learning is the effect previous experiences have on the learning of a new skill or performing a skill in a new context. The concept of transfer lays the foundation for all of skill learning. Transfer of learning can be positive, negative, or neutral. Volleyball coaches should be aware of the transfer of learning effect and utilize it to help with teaching new skills to players or teaching already learned skills in new contexts. Positive transfer provides the foundation for teaching skill progression. Once a skill is learned, it can be transferred to new settings, or be the foundation for new skill learning. An example of transfer would be the overhand throwing pattern. Early in a child’s development the correct overhand pattern should be established. This skill can then be applied across different settings and into new sport skills. In volleyball the spike and jump serve both derive from the basic overhand pattern. Ensure that this fundamental skill is acquired at an early age so that positive transfer can occur later in volleyball skill learning. While positive transfer is a powerful tool, coaches should be aware of the role that negative transfer can play as well. Although negative transfer is temporary, it does initially hinder or hurt learning a new skill. In volleyball, an example of this could be when players initially learn to jump off two feet when spiking, and then the coach tries to teach the basic one-foot take-off for the slide. Since negative transfer is not permanent, the coach should be patient as players work on learning similar, but different skills.

My own comments:

When practicing your chosen skill reflect upon previous experience acquired when practicing a similar skill. When doing so, consider whether there was a positive or negative transfer of learning when learning juggling or speed cup stacking. if so, you may discuss how such an experience affected the learning process of your chosen skill. Make sure to provide details.

Principle #5:  Action-effect principle (Focus Attention on the Movement Effects Rather Than Just the Movement)

Traditionally, coaches have the athlete focus on the internal movement of skills. For example, feedback statements such as “keep your elbows locked “or “reach and snap” have been the standard performance cues used for teaching the basic skills of volleyball. While such statements focus on the movement action rather than the effects of the movement, the motor learning research suggests that focusing on the external effects of movement also has a positive effect on skill acquisition. As volleyball coaches, we should explore the effectiveness of using more external focus of attention when instructing our athletes. For example, when teaching the basic overhand serve, instead of cues such as “keep your elbow high; step forward with the opposite foot, and reach and make contact,” shift the focus to the external effects and see the results. External focus cues might include “see the ball up, step towards the target”, or “hand to ball to the serving zone.” When providing feedback for the basic pass, teaching cues such as “keep the ball low” or “see the pass to the target” might be added with “thumbs together and lock elbows” or “lift with the legs.” An external focus enables the performer not to concentrate so much on the movement itself, but rather on the effect or outcome of the movement and is effective. Coaches always desire to enhance the performance of their athletes. Information from various disciplines such as motor learning can help assist the coach with this process.

My own comments:

When practicing your chosen skill you could apply this PML by shifting from internal to external focus and assess whether the principle was effective. As pointed by Denny (2010), by focusing on external features of the performance learners will pay less attention to the movement itself. This is especially helpful when the learners are moving from the cognitive to the associative state of learning. When reading the content of chapter 12 (Magill & Anderson, 2017), you will realize that learners entering the Fitts and Posner second stage of learning (associative) will focus less and less on the specific movements needed to perform a given skill.  

#6 –Augmented feedback principle (Feedback is Essential for Skill Learning)

Perhaps there is no more conclusive evidence in motor learning literature than the effectiveness of feedback to enhance skill acquisition. In addition to task intrinsic feedback, which is provided through the senses of the learner, augmented feedback provides additional information helping the learner acquire the desired skill performance. A coach providing appropriate augmented feedback to the player regarding the performance of a skill is very helpful. Augmented feedback may come in different forms such as a coach providing verbal feedback. For example, when the coach remarks, “You served 8 of 10 balls in-bounds in zone three,” this type of augmented feedback is called knowledge of results. While KR is often redundant with task intrinsic feedback, it may be needed when task intrinsic is not available or is unclear. Another type of verbal feedback is knowledge of performance. KP is when information is given regarding the specific characteristics of the performance. For example, a coach using KP informs the hitter that she dropped her elbow prior to the spike. This type of verbal information is descriptive knowledge of performance, as the feedback “describes” the act, and is recommended for more advanced players. For beginners, prescriptive KP is more effective such as telling a beginner to keep their elbow high when spiking. Besides verbal feedback, other examples of using augmented feedback include videotape recordings and movement kinematics such as the Dartfish software program.

My own comments:

When practicing your chosen skill you should definitely incorporate this MLP into your practice. There are several ways to receive feedback while practicing and a length discussion is provided in our text. Even if you decide not to add this MLP in your reflection piece, considering it during practice will help you tremendously. 

Principle #7 – Augmented feedback principle (More Is Not Always Better)

While feedback is extremely beneficial in skill acquisition, more is not necessarily better. In fact, asking learners to rate their own performance before providing augmented feedback may actually enhance the feed- back’s effectiveness and help players not become so dependent on the coach providing all the feedback. There are numerous ways to decrease the amount of feedback provided, helping players become independent learners. For example, having players perform several attempts of a skill before providing augmented feedback (called summary feedback) can allow them to engage in a cognitive/kinesthetic skill analysis before hearing from the coach. A method called self-selected feedback suggests players only receive feedback from the coach, when the players request feedback. Another approach of providing less rather than more feedback is termed “bandwidth feedback” which entails establishing an acceptable range or criterion of performance error, and only providing feedback once the player is outside that range. These approaches for reducing feedback delivery are helpful for coaches and players since it is a systematic reduction of feedback based on individual skill levels. So while feedback is essential for skill learning, more is not always better.

My own comments:

The principle #7, which was discussed by Denny (2010), is simply an extension of principle #6. As you will see, Magill and Anderson (2017) will address principle #6 and #7 as one single principle and call it Augmented Feedback (Chapter 15). 

Principle #8 – Whole vs Part practice principle (Consider Organization and Complexity When Practicing the Whole Skill or Part of the Skill)

Perhaps no other motor learning topic is debated as much as the whole/part practice question. When practicing a volleyball skill, which type is more effective? To practice the entire skill or to practice parts of the skill? One way for volleyball coaches to solve this dilemma is to conduct a skill analysis for each of the six volleyball skills (serving, passing, setting, hitting, blocking, and digging) and determine the complexity and the organization of each skill. The complexity of the skill consists of the number of parts or components while the organization of the skill involves the relationship among the various parts. If a skill is highly organized, it means that one part is dependent on the previous components. After doing the skill’s task analysis, the general principle is if the skill is high in complexity and low in organization then the part method is better. For example, serving in volleyball would involve several components or parts to the skill, but these parts are not interdependent to one another; so the part method would be more appropriate. However, when a skill is low in complexity and high in organization practicing the whole skill is more appropriate. For example, spiking in volleyball involves parts that are highly dependent on one another. The approach, jump and arm swing all work interdependently in order for the entire skill to be successful, thus the whole method is more appropriate, and this is especially true when working with beginners. The whole/part debate will continue among volleyball coaches, but determining the complexity and organization of the various skills may provide some guidance regarding which practice approach is better to use during practice skill instruction.

My own comments:

This is a very important principle that will help you when practicing your chosen skill. You will realize that practicing juggling as a whole will produce the best results. This is because juggling is considered high and complexity and high organization (refer to Magill & Anderson, 2017 for details). Now, some will find it helpful to practice a simplified version of the skill (a type of part practice called simplification). Practicing with scarves, for instance, is an example. Notice that you are not trying to apply the part practice to the actual characteristics of the skill of juggling (see the listed 7 characteristics in the picture below).

Now, with the skill of speed cup stacking, one would benefit by employing the part practice method. In this case, the complexity is high but the organization is low. We break up the skill into parts and practice each part separately before practicing it as a whole. For instance, when practicing the 3-6-3 sequence, it is recommended that you practice the 3 up/down part separate from the 6 up/down part.  




Principle #9- Distribution of practice principle (Practices Should Be Short and Frequent)

This principle relates to mass versus distributed practice schedules. A mass practice schedule will have fewer practice sessions than a distributed schedule and will be fewer in number, while a distributed practice schedule will have the same amount of time allotment, but across more sessions making the sessions shorter in length. For the majority of volleyball coaches, decisions regarding the amount of practice time may or may not be within their control, but how long each practice is, and how often the team should practice are legitimate concerns that need to be addressed. The motor learning research suggests that practices can be too long and not as productive as shorter practices, so when in doubt, go for a shorter practice session, rather than a longer one. If more practice is needed, add additional practice sessions instead of lengthening the specific practice schedule.

My own comments:

Consider using this PML when practicing your chosen skill. Your practice sessions should be short with some time for resting in between sessions.  

Principle #10- If You Want To Get Better at Playing Volleyball, Play the Game of Volleyball

The final motor learning principle for coaches to remember repeats the first tenant presented at the beginning of this series. Since repetition aids learning, this critical principle needs repeating; practice like the game. The best practices increase skill learning that can be transferred to the real game setting. During practice, if coaches increase time on game-related skills and increase opportunities to learn the skills in the context of the game, players will get better at playing the game of volleyball. Remember when volleyball coaches had players passing, setting or spiking against the wall during practices. The question no one asked was “how often during the volleyball game will “passing”, “setting”, or “spiking” against the wall be necessary”? Many of our practice drills do not simulate the game conditions. It has been stated that the best passing drill is a pass/set/hit drill; the best setting drill is a pass/set/hit drill, and the best hitting drill is a pass/set/hit drill. In other words, if you want to get better at playing the game, then play the game. For volleyball coaches, this means designing drills to simulate the same skills needed in the game. If it isn’t game like, don’t do it. Always be analyzing practices, changing drills, and incorporating mini-games, wash drills and controlled scrimmages, so that practice looks like the game of volleyball. If you want your players to get better at playing volleyball, then let them play volleyball.

Effective volleyball coaches work hard to enhance the performance of their players. Information from various disciplines such as motor learning can help assist them with this process. This article looked at 10 principles from motor learning literature along with applications for teaching/coaching volleyball skills. Although certainly not exhaustive of all motor learning concepts, these principles do provide a solid pedagogical foundation for coaches developing successful players and effective teams.

My own comments:

Refer to principle #1