Honors Program Theses

Award/Availability

Open Access Honors Program Thesis

First Advisor

Dr. Catherine Desoto, Honors Thesis Advisor, Psychology

Keywords

Exclusion, Intergroup Threat, Ingroup, Outgroup, Prejudice, Cortisol

Abstract

Previous research shows that both exclusion and intergroup threat can increase prejudice and biological markers such as cortisol. Exclusion from an outgroup should increase prejudice and cortisol more than similar interactions in an ingroup since it incorporates both exclusion and intergroup threat. Change in cortisol and prejudice was examined in fifty participants who were excluded by either a politically-based ingroup or outgroup. Two t-tests were conducted to examine the change in a) cortisol and b) prejudice as a function of experimental ingroup/outgroup conditions. Additional analyses were also conducted to further explore cortisol changes and similarity. Cortisol increased more in participants excluded by an outgroup compared to those excluded by an ingroup. Prejudice change was not different between conditions. Additionally, cortisol increase is negatively correlated with increasing similarity.

Year of Submission

2019

Department

Department of Psychology

University Honors Designation

A thesis submitted in partial fulfillment of the requirements for the designation University Honors

Date Original

5-2019

Object Description

1 PDF file (vii, 25 pages)

Language

EN

File Format

application/pdf

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