Keywords

self-efficacy; public speaking; multilingual students; non-native English speakers; international students; higher education

Subject Categories

Cognition and Perception | Cognitive Psychology | Human Factors Psychology | Psychology

Abstract

This qualitative dissertation explores the sources of public speaking self-efficacy among non-native English-speaking international students enrolled in U.S. college public speaking courses. The study applies Bandura's social cognitive theory to examine how students describe the experiences that shape their confidence and perceived ability to succeed, with attention to mastery experiences, vicarious experiences, verbal persuasion, and physiological and affective states. It also considers how classroom practices and instructor support contribute to or constrain students' confidence.

Data were collected through semi-structured student interviews, guided reflection artifacts connected to major speech assignments, and key-informant interviews with public speaking instructors. Thematic analysis was used to identify recurring patterns across the data.

Findings suggest that students' self-efficacy developed through preparation, repeated practice, feedback, peer observation, anxiety management, and successful performances interpreted as evidence of growing capability. Structured preparation, supportive feedback, relatable peer models, and classroom environments that normalized multilingual communication were especially important.

The study contributes to public speaking pedagogy, multilingual student research, and self-efficacy theory by showing how these sources of efficacy operate in U.S. college public speaking classrooms.

Completion Date

2026

Semester

Summer

Committee Chair

Ann Miller

Degree

Doctor of Philosophy (Ph.D.)

College

College of Sciences

Department

Strategic Communication PhD

Format

PDF

Document Type

Dissertation

Language

English

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