Ans1: Table using own results:

Four measures of error

Preferred hand

Algebric/ constant error ­CE ­1.63

Non­Preferred hand
­3.25

(Mean)
Variable error­VE (SD)

2.49

3.52

Total Variability­E

2.98

4.79

Absolute Error­AE

0.16

0.33

Ans2: CE is the mean of the scores including positives and negatives. The positive value is obtained when the Curling ball goes over the target and a negative score is the distance before reaching the target. The total positive or negative value will tell you if in overall you overshot
Curling ball or under shot. In my case CE value of ­1.63 means that average distance of scores from the target was 1.63 cms before reaching the target point when curling. Likewise
­3.25 for the non­preferred hand would mean 3.25 cms distance on average the scores would be before reaching the target, and therefore under shot.
VE is the standard deviation of the scores. This will tell us the variability of scores in relation to the mean. If I had a lower VE score it would mean that I did not deviate much from my mean, which shows a consistency like always throwing the curling ball to around the same spot. In my case VE score of 2.49 means that 68% of the scores fall within +/­ 2.49 cms for the preferred hand and +/­ 3.52 of the non­preferred hand of the mean or CE of ­1.63 or ­3.25.
E score is the combination of the average and standard deviation score. A low E score represents a better performance because high values in average or standard deviation means a poor skill level which results in a higher E score. In my data we see that the Preferred hand has a lower E score which means I performed better with my Preferred hand.
AE (absolute error) the mean of our score; this is different from CE mean the term “absolute” means that we ignore positive/ negative signs. It gives a general indication of the magnitude of error across all trials.This would tell us how far our curling ball was away from the target. y AE score for preferred hand was 0.16 meters, which means that the throw is 0.16
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meters away from the target. While, for non­preferred hand the AE score was 0.33 which means the throw is 0.33 meters away from the target.
Overall, the four measures of error reveals that my performance was better using preferred hand than non­preferred.
Ans3: A Paired­Ttest was performed using the class data and the additional data which showed that the class performed better with their preferred hands. In interpretation, since the calculated t­value (­3.92)is greater than the critical values at 0.05 confidence level, there is a significant difference between the preferred and the non­preferred hands ( t=­3.92, df=25, p>0.0006). aboratory # 7
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KINE 3020 3.0 SKILLED PERFORMANCE AND MOTOR LEARNING

AME: ANDEEP GILL
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M TUDENT # 12890406
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2 A: EON LAM
T L LAB : 3 B 0 ATE: ov 16, 2015
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