Because the researcher had access to twenty years of data on the same participants in an education program,the researcher was able to perform a(n)______________study.
A)cross-sectional
B)operational
C)reformative
D)longitudinal

Question

Quizplus · Accepted Answer

A longitudinal study is one that measures the same sample of individuals over an extended period, which in this case is twenty years. This allows the researcher to study individual changes over time and provide more accurate information about the effects of the education program on these participants.

Because the Researcher Had Access to Twenty Years of Data