To determine how much racial prejudice declined in the last half of the twentieth century, a researcher examines answers to the same questions asked in several different polls conducted from the 1940s through 1990s. This is an example of a
A) cross-sectional survey.
B) trend study.
C) panel study.
D) cohort study.

Question

Quizplus · Accepted Answer

A trend study examines changes in a population over time by analyzing different samples from the same population at different points in time, which is what the researcher is doing by examining polls from the 1940s through the 1990s.

To Determine How Much Racial Prejudice Declined in the Last