IB Sports, Exercise and Health Science Topic 5: Skill in Sport: Principles of skill learning 5.3.1 Distinguish between learning and performance Investigation 1 Work with a partner. One is the student, the other is the instructor. The instructor (out of sight) composes a sequence of movements, chosen at random. Keep the movements simple (about 10 different ones are sufficient). The instructor practices the routine so that it can be demonstrated to the student fluently. The sequence is then taught to the student by demonstrating it in full and once only. The student then performs at his/her best. This performance will probably contain some errors. Without any explanation the instructor shows it again. The student demonstrates it again. Repeat the procedure without verbal coaching till the sequence is performed correctly. Note how many mistakes of movement pattern or sequencing are made at each performance. Answer Each attempt at the task is a performance, a demonstration of the learner’s ability in that task at that time. While a person is learning, each performance is likely to be different from (and hopefully better than) the last. As the skill is learned, performance becomes more consistent. So learning is the process by which performance is refined in such a way that it represents a permanent change of behavior. However, we have to be careful about making too many assumptions about learning based on performance measures at any given moment. 5.3.8 Explain the different types of presentation Investigation 2 TO INVESTIGATE THE EFFECTIVENESS OF WHOLE AND PART METHOD OF TEACHING A NOVEL SEQUENCE OF MOVEMENTS Method : The class is divided into four groups; four group leaders are appointed. The class teacher has previously devised and taught to the group leaders a sequence of movements which flow into one another and which contains some complex (but not impossible) moves. The constituent parts of the sequence are agreed. Group A learns the sequence by the ‘part’ method (Figure 1.0 i.). Group B learns the sequence by the ‘progressive part’ method (Figure 1.0 ii.). Group C learns the sequence as a whole. Figure 1.0 ‘Part’ methods of presentation IB Sports, Exercise and Health Science Topic 5: Skill in Sport: Principles of skill learning Group D learns by the whole-part-whole method. Discussion: 1. Which group takes the longest to learn? 2. Which group performs the sequence best? 3. What seems to be the best method of teaching for this particular skill? Sketch graph Fig 1.1 4. You have been investigating teaching methods, but what are the ‘confounding variables’ in this experiment, i.e. factors other than teaching method which may have affected the result? Comments and Notes: o There probably will be no clear outcome. o Which group learns fastest depends on the overall skill level of the group - but in theory the sequence should be best performed by group C, since they will have got links as well as moves. This may however take time! A learning curve for positive acceleration o The Progressive Part participants (group B) tend to know the beginning well - but not the end of the sequence. o The Whole Part Whole method (group D) should be most effective. 5.3.3 Outline the different types of learning curves A learning curve for negative acceleration Learning Curves Curves of learning are based on individuals’ performance at given moments in given situations. There is no single curve of learning – all curves are related to individuals and the skill in question. However, certain types of curves can be identified: Positive acceleration Negative acceleration A learning curve for a plateau of IB Sports, Exercise and Health Science Topic 5: Skill in Sport: Principles of skill learning Linear Plateau Task One: Outline and draw the FOUR different types of learning curves 2. What causes plateau and what can teachers or coaches do to help overcome these? Answer : Causes of plateau : o Psychological factors such as anxiety, boredom. o Physical fitness deficiencies such as lack of physical ability, or poor training. o Changes in technique. o Changes in cognitive strategy - the way in which the athletes thinks about the skill. Overcoming plateau: o Identify the cause(s) of the plateau. o Structure training and practices to ensure progress. o Reduce psychological pressures. 3. You see a novice complete a number of tennis serves over a period of 20 minutes of massed practice. Sketch graph 2.0. Success rate against time for a novice tennis a. Sketch a graph, with time in minutes on the player practising a serve horizontal x-axis and success rate on the vertical yaxis, showing the possible changes in performance of the novice over the practice period. (3 marks) Answer: o See sketch graph 2.0 IB Sports, Exercise and Health Science Topic 5: Skill in Sport: Principles of skill learning b. Explain the shape of the performance curve on your graph. (4 marks) Answer: o Starts off at low level because novice has initially low level skill. o With a simple closed skill, early trials show sharp increase in performance level (due to learning strategies / associative stage). o Upper level reached because of optimum performance level. o Levelling out (plateau) due to possible fatigue / lack of motivation / needs more information to refine the skill. o Fall in performance (alternative curve) due to lack of motivation / distractions / lack of fitness. c. What strategies might the teacher employ to help improve the performance of any closed skill by a novice during a 20-minute practice session? (4 marks) Answer : o o o o o o o Challenges / competition against others of the same ability. Setting of goals / targets. Positive feedback : positive comments / encouragement. Use of rest relief for recovery between bouts of work. Change practice conditions such as whole-part-whole practice. Use of selective attention. Use of visualisation or mental rehearsal. 5.3.5 Define the concept of transfer EXAMPLES OF TRANSFER TYPES Put the following pairs of skills into one of three categories (i) very similar (ii) likely to cause interference (iii) dissimilar. Answer: o Tennis serve and volleyball serve very similar. o Long and short serve in badminton likely to cause interference. o Golf drive and ten pin bowling dissimilar. o Straight arm pull and bent arm pull in back crawl likely to cause interference. o Rugby League and Rugby Union likely to cause interference. IB Sports, Exercise and Health Science Topic 5: Skill in Sport: Principles of skill learning o Dismounts from the high bar and the rings in men’s gymnastics very similar. o Scottish folk dancing & Latin dancing likely to cause interference. o Ice hockey and field hockey dissimilar. Notes: o These allocations are a matter of opinion, and will depend on the ability of the learner to identify common features as between activities, and focus on these to maximise transfer. 5.3.6 Outline the types of transfer Investigation 3 TO INVESTIGATE POSITIVE TRANSFER EFFECTS IN SKILL LEARNING Method : Select one form of transfer from categories 1 - 5 in Figure 3.0. Select two groups of subjects, Group 1 and Group 2, matched for motor learning ability as far as possible. Using the following two tasks (A and B) o Task A = using non-preferred hand, throwing tennis ball into bin from 2.5m. o Task B = using non-preferred hand, throwing dart into bull of dartboard from 2.5m. Success criteria for: o Task A = 4 successive balls on target. o Task B = 4 successive darts in the bull. Experimental protocol: o Group 1 practises on Task A for 10 minutes. o Group 2 relaxes and waits without practice. o Both groups then begin Task B, and time is taken to successfully complete the task. What might you expect in the learning of Task A to transfer positively to learning in Task B. IB Sports, Exercise and Health Science Topic 5: Skill in Sport: Principles of skill learning Figure 3.0 Categories of transfer Decide on the criteria you will use to determine that learning has taken place; for example, you might decide that seven accurate shots out of ten in a novel aiming task constitutes learning. Group 1 learns Task A and then Task B. Group 2 learns only Task B. Results : Determine which group learned Task B more quickly. Table 3.1 Sample results - Times taken to learn task B subject A B C D E F G H mean Group 1 (A + B) 5m 30s 7m 20s 6m 32s 12m 32s 4m 54s 5m 12s 7m 16s 6m 55s 7m 01.4s subject I J K L M N O P Group 2 (B only) 8m 35s 10m 42s 9m 40s 5m 25s 10m 31s 7m 20s 9m 10s 12m 05s 9m 11.0s Discussion: Assuming all other variables have been controlled (a dangerous assumption under the circumstances of a class experiment), what do your results tell you about the possibility of transfer between Task A and Task B for Group 1? Answer: o Results tend to indicate a transfer effect, in that the group who had the opportunity to learn in one situation was able to transfer this learning to a similar one and thus learn the second task more quickly. o Any experiment can be improved by improving the reliability and validity of the test. IB Sports, Exercise and Health Science Topic 5: Skill in Sport: Principles of skill learning How might you improve the experiment so that you could be more confident of your results? Answer: Reliability and Validity. Discuss ways in which the validity of the results is compromised by the conditions under which the experiment is conducted i.e. lack of control of environment, groups etc. Reliability: o Defined as the extent to which repeating the test under very similar conditions would produce a similar result. o Assuming an intrinsically reliable test, reliability can be assured by ensuring that the test protocol is carried out exactly on each occasion. Validity : o Defined as the extent to which a test measures that which it is supposed to measure. o Proper construction of a test is achieved by controlling all extraneous variables so that you are measuring only those variables in which you are interested. o In this case you would select the groups randomly or match the groups for variables such as motor-ability, gender, sporting experience and age. Review Questions 1. Give a sport-related example of a) positive transfer and b) negative transfer. Answer : o Positive Transfer : the effect of a good basic throwing action should provide the foundation of throwing a netball/ passing the ball with a lacrosse stick / throwing the javelin. o Negative transfer : tennis players find it difficult to bend their arms when playing squash strokes. 2. List the six categories of transfer and give an example for each. Answer : Skill to skill : o Example : tennis serve compared with an overarm volleyball serve. Practice to performance : o Example : an athletic field event, the learner tries to simulate the competitive environment in training so that the ‘feel’ of the event is the same in competition. Abilities to skill : IB Sports, Exercise and Health Science Topic 5: Skill in Sport: Principles of skill learning o Example : a person who shows skill at a number of different sports (and could therefore be said to have ‘ability’) could have transfer from these abilities to a new game or skill. Bilateral transfer : o Example : throwing a ball with either hand or kicking with either foot. Principles to skill : o Example : knowledge of a skill principle (body position or sequence of actions - from a theoretical explanation) could be transferred to learning the actual skill. o A coach could explain the essentials of giving topspin to a table tennis ball, the learner would then make a good attempt at the skill. Stage to stage : o Example : building a skill on those learned previously, a trampolinist will practice and become able to do a single forward somersault with facility. o The next stage would involve an attempt at a double forward somersault. 3. List four requirements for positive transfer to occur. Answer: o The greater the similarity between the skills, the greater the chance of positive transfer between the skills. o New skills that are closely related to previously learned skill. o General strategies of attack and defence can be transferred in invasion games. o A skill must be well taught for effective transfer to another skill. 4. Give an example of a coach using positive transfer to develop a technique. Answer: o The coach might organise a number of drills or practices that are related to the desired activity (perhaps parts of a serial activity) but do not include the full activity. o The learner will repeat the drills so that the drill movement will become well practised, in the hope that this element of the total skill will also become fluent within the context of the total skill. o An example of this would be the learner practising soccer dribbling drills around cones or along pitch lines, and shooting drills into a small square marked at head height on a wall. o Hopefully the skills of close control and accurate shooting would transfer to the game situation. IB Sports, Exercise and Health Science Topic 5: Skill in Sport: Principles of skill learning 5. How can transfer be detrimental to performance? Give a practical example. (3 marks) Answer: o The performance of one skill may well hinder the performance of another. o Because there may well be inappropriate movements / information processing which may confuse the performer. o For example, a badminton player may play tennis immediately after playing badminton and the forehand in tennis may be far too ‘wristy’ because of the confusion in the response. 6. How can a coach ensure that as much positive transfer takes place as possible in a training session? (5 marks) Answer : o The coach uses as many different practices as possible in training. o To ensure the building of schema. o Make sure training is relevant to the ‘real’ game. o Tell performers about transfer to heighten awareness. o Avoid confusing practises to avoid negative transfer. o Ensure that skills are thoroughly learned before moving on to other skills. o Give distributed practice sessions / rest intervals for mental assimilation. 7. Define the terms positive transfer and negative transfer in the context of someone learning a sport skill. (2 marks) Answer: o Positive transfer refers to the enhancement of performance of a skill being learned as a result of the previous learning of one (or more) other skill(s). o Negative transfer refers to the impairment of performance of a skill being learned as a result of previous learning of one (or more) other skills. Figure 3.2 Extents of transfer in various situations 8. Figure 3.2 shows different extents of transfer in different situations labelled A, B, and C, give examples of one pair of games type skills which illustrate the kinds of transfer indicated. (4 marks) Answer: Situation A : Positive transfer o Tennis serve compared with an overarm volleyball serve. o Where the striking action and desired outcome are similar. Situation B : Negative transfer IB Sports, Exercise and Health Science Topic 5: Skill in Sport: Principles of skill learning o Good examples would be volleying in tennis and badminton. o Where although there is a distinct similarity in the movements, there are subtle differences in technique (e.g. use of the wrist). This tends to cause interference between the two skills. o At the same time it is possible that some positive transfer will occur, but between more similar elements such as body positioning for the shot. Situation C : Zero transfer o Any relevant examples of dissimilar skills such as a ‘discrete’ golf shot with a static ball as compared with a ‘dynamic’ skill such as dribbling a basketball.