Billy took the WISC IV when he was age 8 and again at age 9. The correlation between these two scores is most likely to be around

Question

Quizplus · Accepted Answer

The correlation between scores on the WISC IV is typically quite high, with a reported correlation of around .90 between test-retest scores taken a year apart. Therefore, it is likely that the correlation between Billy's scores taken a year apart will be quite high as well, possibly around .80.

Billy Took the WISC IV When He Was Age 8