A researcher tests the memories of groups who are 40,60,and 80 years old,and finds the youngest group better able to memorize information.The researcher concludes memory ability declines with age.You should assume the researcher's conclusion is
A) valid, due to sequential effects.
B) invalid, due to sequential effects.
C) valid, due to cohort effect.
D) invalid, due to cohort effect.

Question

Quizplus · Accepted Answer

The conclusion drawn by the researcher is invalid due to cohort effects. Cohort effects refer to differences between groups based on the historical experiences and socialization of each group, rather than solely age-related differences. In this case, it is possible that the oldest group had different educational and cultural experiences that could have affected their memory ability, rather than age being the sole factor. Therefore, it is not accurate to conclude that memory ability declines with age based on this study.

A Researcher Tests the Memories of Groups Who Are 40,60,and