Bernadette, a participant in a longitudinal study, became quite familiar with the test over time and, as a result, her performance improved. This limitation of longitudinal research is known as __________.
A. biased sampling
B. practice effects
C. random assignment
D. cohort effects
Answer:B
Bernadette, a participant in a longitudinal study, became quite familiar with the test over time and, as a result, her performance improved. This limitation of longitudinal research is known as __________.
A. biased sampling B. practice effects C. random assignment D. cohort effects