grandmother hypothesis

the proposition, based on evolutionary theory, that the contribution of grandparents (particularly grandmothers) to the care of their grandchildren has been a factor in extending the human lifespan. [proposed by U.S. evolutionary biologist George C. Williams (1926–2010)]

Browse dictionary by letter

a b c d e f g h i j k l m n o p q r s t u v w x y z

Psychology term of the day

January 23rd 2025

analogies test

a test of the participant’s ability to comprehend the relationship between two items and then extend that relationship to a different situation: For example, paintbrush is to paint as pen is to ___.