Publisher
University of Tennessee at Chattanooga
Place of Publication
Chattanooga (Tenn.)
Abstract
Previous literature has established a relationship between five factor model (FFM) traits and job performance, a relationship between endophasia (inner speech with no audible external vocalization) and cognitive abilities, and a relationship between cognitive abilities and job performance. However, there is a gap in the literature examining a direct relationship between endophasia and job performance. The purpose of the proposed study is twofold: one, to establish a direct link between endophasia and job performance where one currently only exists theoretically, and two, to investigate any potential associations between specific types of endophasia and job performance for individuals with similar five factor model traits. The proposed method is to administer a self-report battery to employees at a textile manufacturing company measuring experiences of endophasia, personality, and cognitive ability and collect job performance data as measured by objective achievement of KPIs as well as manager ratings of performance. The hypothesis for this proposed study are: 1) Endophasia positively predicts job performance above and beyond general cognitive ability 2) For individuals with similar Trait Conscientiousness scores, individuals experiencing more frequent inner speech will have higher job performance 3) For individuals with similar Trait Extraversion scores, individuals experiencing more frequent inner speech will have higher job performance Hierarchical multiple regressions will be conducted to test hypothesis 1. Each measure of job performance will be regressed with frequency and variety of endophasia while controlling for cognitive ability. Moderated regressions will be conducted to test hypotheses 2 and 3. FFM traits will serve as the independent variables, measures of job performance will serve as the dependent variables, and the frequency of each variety of inner speech experienced will serve as the moderator variables. Implications if the null hypotheses are rejected would establish a direct relationship between endophasia and job performance, opening the door for further research into the factors which influence and how job performance may be improved for individuals experiencing anendophasia or infrequent endophasia. Additionally, these findings can provide industry professionals insights into factors which influence job performance and may be used for selection or training. This proposed study has passed a preliminary IRB review and is awaiting further IRB approval. It has been approved by the company from which employee data will be collected.
Date
November 2026
Subject
Industrial and organizational psychology
Document Type
posters
Language
English
Rights
http://rightsstatements.org/vocab/InC/1.0/
License
http://creativecommons.org/licenses/by/4.0/
Included in
Relationship between inner speech, personality, and job performance for clothing manufacturing employees
Previous literature has established a relationship between five factor model (FFM) traits and job performance, a relationship between endophasia (inner speech with no audible external vocalization) and cognitive abilities, and a relationship between cognitive abilities and job performance. However, there is a gap in the literature examining a direct relationship between endophasia and job performance. The purpose of the proposed study is twofold: one, to establish a direct link between endophasia and job performance where one currently only exists theoretically, and two, to investigate any potential associations between specific types of endophasia and job performance for individuals with similar five factor model traits. The proposed method is to administer a self-report battery to employees at a textile manufacturing company measuring experiences of endophasia, personality, and cognitive ability and collect job performance data as measured by objective achievement of KPIs as well as manager ratings of performance. The hypothesis for this proposed study are: 1) Endophasia positively predicts job performance above and beyond general cognitive ability 2) For individuals with similar Trait Conscientiousness scores, individuals experiencing more frequent inner speech will have higher job performance 3) For individuals with similar Trait Extraversion scores, individuals experiencing more frequent inner speech will have higher job performance Hierarchical multiple regressions will be conducted to test hypothesis 1. Each measure of job performance will be regressed with frequency and variety of endophasia while controlling for cognitive ability. Moderated regressions will be conducted to test hypotheses 2 and 3. FFM traits will serve as the independent variables, measures of job performance will serve as the dependent variables, and the frequency of each variety of inner speech experienced will serve as the moderator variables. Implications if the null hypotheses are rejected would establish a direct relationship between endophasia and job performance, opening the door for further research into the factors which influence and how job performance may be improved for individuals experiencing anendophasia or infrequent endophasia. Additionally, these findings can provide industry professionals insights into factors which influence job performance and may be used for selection or training. This proposed study has passed a preliminary IRB review and is awaiting further IRB approval. It has been approved by the company from which employee data will be collected.
Department
University of Tennessee at Chattanooga. Dept. of Psychology