Question

Who classified group as In-group and Out-group?

• A. Sumner
• B. Cooley
• C. Kurt Lewin
• D. None of them

Hint:

In-group = “we”; out-group = “they”—origin of many stereotypes.

Answer 1

The Correct Option is A

Step 1: Key concept. W. G. Sumner introduced in-group (a group one identifies with) and out-group (a group perceived as “they”), explaining ethnocentrism and intergroup bias.
Step 2: Eliminate distractors. Cooley discussed primary/secondary groups; Lewin pioneered field theory and group dynamics, not this classification.
Step 3: Conclude. \[ \boxed{\text{Sumner (Option A).}} \]