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Home Q & A Board Science-Related Homework Help Psychology
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BritishGent BritishGent
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6 years ago
A reading test and an intelligence test each have given reliability coefficients of .90.  The correlation between them is .80.  A school guidance worker wishes to use the difference between standard scores on the two tests as a measure of reading retardation.  The reliability of this difference score is approximately:
A) .70.
B) .90.
C) .50.
D) .80.
E) .30.
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1 Reply
Using the textbooks:

Statistics for Psychology, 5th Edition (Aron)
Measurement and Evaluation in Psychology and Education, 8th Edition (Thorndike)
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aeLiaLaeLiaL
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#1
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6 years ago
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BritishGent Author
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6 years ago
This helped my grade so much Perfect
Morgan-C
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Yesterday
I appreciate what you did here, answered it right Smiling Face with Open Mouth
shangshang
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2 hours ago
Smart ... Thanks!
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