A limitation of using grouped data is that:
A) the average score may not represent the performance of individual subjects in a group.
B) a curve resulting from plotting averaged data may not reflect the true nature of the psychological phenomenon being studied.
C) grouping scores adds error variance to the data.
D) the average score may not represent the performance of individual subjects in a group, and a curve resulting from plotting averaged data may not reflect the true nature of the psychological phenomenon being studied.

Question

Quizplus · Accepted Answer

Grouped data can obscure individual variations and may not accurately reflect the underlying psychological phenomenon, as both the average score and the plotted curve can misrepresent individual performances and true data patterns.

A Limitation of Using Grouped Data Is That