5. Imagine we collect data from 132 people. Each person writes two tests (test 1, correlation between observed scores on the two tests is 0.64. For test 1 observed scores: M = 70.00, SD = 10.00, and r= 0.87. For test 2 observed scores: M = 75.00, SD = 13.00, 2). The %3D 071 ntion hetween true scores on the two tests?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 23PPS
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5. Imagine we collect data from 132 people. Each person writes two tests (test 1, test 2). The
correlation between observed scores on the two tests is 0.64. For test 1 observed scores:
M = 70.00, SD = 10.00, and r = 0.87. For test 2 observed scores: M = 75.00, SD = 13.00,
and rx = 0.71. What is the correlation between true scores on the two tests?
%3D
%3D
(a) 0.90
(b) 0.70
(c) 0.66
(d) 0.81
Transcribed Image Text:5. Imagine we collect data from 132 people. Each person writes two tests (test 1, test 2). The correlation between observed scores on the two tests is 0.64. For test 1 observed scores: M = 70.00, SD = 10.00, and r = 0.87. For test 2 observed scores: M = 75.00, SD = 13.00, and rx = 0.71. What is the correlation between true scores on the two tests? %3D %3D (a) 0.90 (b) 0.70 (c) 0.66 (d) 0.81
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