Author Question: A researcher who wants to know if elderly people are more health conscious than younger people could ... (Read 159 times)

ec501234 · **on:** Jun 20, 2018

A researcher who wants to know if elderly people are more health conscious than younger people could study a group of elderly people and a group of young people to assess any differences. Such an approach would involve

a. multiple baseline research.
b cohort research.
c. longitudinal research.
d. cross-sectional research.

Question 2

If Variable X causes Variable Y,

a. the correlation between X and Y should not change over time
b. the correlation between X at Time 1 and Y at Time 2 should be greater than the correlation between Y at Time 1 and X at Time 2
c. X and Y should be correlated more strongly between Time 1 and Time 2 than they are at Time 2
d. X and Y should be perfectly correlated
e. the correlation between X and Y should approach 1.00 over time