Who proposed the idea that behavior is a function of both the person and the situation in the first half of the 20th century?

A) Max Ringelmann
B) Norman Triplett
C) Kurt Lewin
D) Gordon Allport

Kurt Lewin

Known as the father of modern social psychology, he developed theories on group dynamics and organizational development.

Function

In mathematics, a relation between a set of inputs and a set of permissible outputs with the property that each input is related to exactly one output; in general, an activity or purpose natural to or intended for a person or thing.

Situation

The set of environmental and contextual circumstances or conditions surrounding and affecting an event, action, or decision.