Which of the following represents the strongest test-retest reliability for a test?
A) 0.00
B) -0.75
C) +0.70
D) +0.90

Question

Quizplus · Accepted Answer

A test-retest reliability coefficient of +0.90 represents a very strong positive correlation between test scores obtained at two different time points, indicating a high degree of consistency in test scores over time. A correlation coefficient of 0.00 indicates no correlation at all, while negative correlation coefficients suggest an inverse relationship between the two sets of scores. A correlation coefficient of +0.70 is considered a moderate correlation, but not as strong as the +0.90 option.

Which of the Following Represents the Strongest Test-Retest Reliability for a Test