When r is close to -1.00 or to +1.00, there is evidence for an instrument's reliability.

Question

Quizplus · Accepted Answer

The value of r (correlation coefficient) close to -1.00 or +1.00 indicates a strong linear relationship between two variables, not the reliability of an instrument. Reliability refers to the consistency of a measure, often assessed by methods like Cronbach's alpha, not by the correlation coefficient between two variables.

When R Is Close to -1