Multiple Choice
Harker and Keltner (2001) examined women's yearbook photos from 30 years ago. They examined how women's facial expressions in the photos predicted whether or not they were more or less likely to marry, and how happy they were if they stayed married. What kind of research is this an example of?
A) archival
B) experimental
C) longitudinal
D) observational
Correct Answer:

Verified
Correct Answer:
Verified
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