Two researchers studied the relationship of positive emotions and longevity by examining smile intensity in photographs of major league players from the past and comparing it to their age at the time of death. This research method can be regarded as an example of _____.
A)naturalistic observation
B)case study
C)archival research
D)psychobiography

Question

Quizplus · Accepted Answer

This is archival research as it involves examining existing records (photographs of major league players) to conduct research.

Two Researchers Studied the Relationship of Positive Emotions and Longevity