Related Experiment Video
Updated: Aug 19, 2026

Post-Movie Subliminal Measurement (PMSM), for Investigating Implicit Social Bias
Published on: February 29, 2020
Social projection to ingroups and outgroups: a review and meta-analysis
Jordan M Robbins1, Joachim I Krueger
1Department of Psychology, Brown University, Providence, RI 02912, USA.
Abstract:
Social projection is the tendency to expect similarities between oneself and others. A review of the literature and a meta-analysis reveal that projection is stronger when people make judgments about ingroups than when they make judgments about outgroups. Analysis of moderator variables further reveals that ingroup projection is stronger for laboratory groups than for real social categories. The mode of analysis (i.e., nomothetic vs. idiographic) and the order of judgments (i.e., self or group judged first) have no discernable effects. Outgroup projection is positive, but small in size. Together, these findings support the view that projection can serve as an egocentric heuristic for inductive reasoning. The greater strength of ingroup projection can contribute to ingroup-favoritism, perceptions of ingroup homogeneity, and cooperation with ingroup members.
More Related Videos
08:24The Joint Effect of Social Comparison and Social Distance on Evaluation of Intertemporal Choice Outcomes in Event-related Potential Studies
Published on: August 25, 2023
06:42Continuous Theta Burst Stimulation of the Posterior Medial Frontal Cortex to Experimentally Reduce Ideological Threat Responses
Published on: September 28, 2018
Related Concept Videos
In- and Out-Groups
Social Proof
Stereotype Content Model
Impact of Groups on Groups
Social Foundations of Self II: The Generalized Other
Social Psychology and Individual Behavior