Test-Retest Reliability Is Determined By

Test-retest reliability is determined by:

A) administering the same measure to the same sample at two different points in time and calculating the correlation between an individual's performance on the two administrations.
B) administering the same measure to two different samples at two different points in time and calculating the correlation between an individual's performance at the two different times.
C) correlating the odd-numbered items of a measure with an individual's performance on the even-numbered items of that same measure.
D) correlating the odd-numbered items of a measure with an individual's performance on the even-numbered items of a different measure.