Home Grades Personalized Reviews Discussion Course Materials Test 3- Chapters 8-

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Home Grades Personalized Reviews Discussion Course Materials Test 3- Chapters 8-11 Graded Assignment | Back to Assignment Due Friday 1117.17 at 11:45 PM Attempts: Score: /1 17. A sample of n 16 scores produces a… Aa Aa A sample of n-16 scores produces a t statistic of t = 2.00. If the sample is used to measure effect size with r what value will be obtained for r2? r2 = 4/19 r2 = 2/19 Flash Piayer MAC 27.001 Q3 3.34.1 2004-2016 Aplia. AFrigtes reserved Save & Continue -2. Graded 2033 ingage Leanning enotodl Al ights Continue without saving Copyright Notices Terms of Use Privacy NoticeSecurity NoticeAccessibility

Explanation / Answer

Solution :

Here n=16, t=2.00 and df= n-1 = 16-1 =15

formula to calculate r2:

r = sqrt( ( t2 ) / ( ( t2 ) + ( df * 1) ) ) = sqrt( 22 /(22+15)) = 0.45883
r2 = (0.45883)2=   0.21052631578 = 4/19

Where,
r = Effect Size,
t = T Test Value,
df = Degrees of Freedom.

Therefor the ans is :

a)r2 = 4/19

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