The results of a repeated-measures study with n 5 25 participants produce a mean difference of MD
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The results of a repeated-measures study with n 5 25 participants produce a mean difference of MD 5 1.2 points with SS 5 96 for the difference scores and a t statistic of t 5 3.00. If the percentage of variance, r 2
, is used to measure effect size, then what is the value of r 2
?
a. 9 33 5 0.27
b. 3 27 5 0.11
c. 1.2 2 5 0.60
d. 1.2 4 5 0.30
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Related Book For 
Essentials Of Statistics For The Behavioral Sciences
ISBN: 9781337098120
9th Edition
Authors: Frederick J Gravetter, Larry B. Wallnau, Lori Ann B. Forzano
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