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Click to increase image sizeClick to decrease image size Additional informationNotes on contributorsMorris A. OkunMorris A. Okun is professor of psychologyMary BeninMary Benin is associate professor of sociology at Arizona State UniversityAnn Brandt-WilliamsAnn Brandt-Williams is chair and professor of psychology at Glendale Community College.
Okun et al. (Sun,) studied this question.