Why would we expect Pearson’s r to be slightly lower for an alternate-forms assessment than for a test–retest assessment?
a. Because reliability is usually lower than validity
b. Because alternate-forms assessment uses the same measurement items, whereas test–retest assessment uses different measurement items
c. Because alternate-forms assessment uses different measurement items, whereas test–retest assessment uses the same measurement items
d. Because validity is usually lower than reliability
Ans: C
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