Investigation the Moderator Role of Conscientiousness in Related to Effect of Socioeconomic Status, Neuroticism, Extraversion, Openness to Experience, and Agreeableness on Substance, Alcohol, and tobacco Use

Hashem Jebraeili--- PhD Candidate of Health Psychology, Kharazmi University, Tehran, Iran,
Jafar Hasani--- Associate professor of Neuropsychology, Department of Clinical Psychology, Faculty of Psychology and Educational Sciences, Kharazmi University, Tehran, Iran,
Mojtaba Habibi Asgarabad--- Assistant Professor of Health Psychology, Department of Health Psychology, Tehran Institute of Psychiatry- School of Behavioral Sciences and Mental Health, Iran University of Medical Sciences, Tehran, Iran

Abstract


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Background: Addiction has negative consequences on addicted person and his/her family members. The
goal of pThe relationship between personality traits and socioeconomic status with substance use has been
shown in a variety of studies. However, it is little known about the mechanisms of this relationship and
variables may effect this relationship. Therefore, the present study investigated in frame of a model the
moderator role of conscientiousness in related to effect of socioeconomic status, neuroticism, extraversion,
openness to experience, and agreeableness on Substance, Alcohol, and tobacco Use.
Materials and methods: Current study is analytical- cross sectional and regarding to data gathering and
analysis methods was conducted in correlational way. The number of 300 (124 mal and 176 female) students
were selected through available sampling from Kharazmi university and were assessed employing NEO
Personality Questionnaire and researcher made Questionnaires on socioeconomic status and substance use.
Data were analyzed based on the path analysis and using 8.8 vesion of Lisrel software.
Results: Result showed that conscientiousness had significant positive relationship with extraversion (r=0.46,
P<0.01), openness to experience (r=0.14, P<0.05), and agreeableness (r=0.20, P<0.01), and significant negative
relationship with neuroticism (r=-0.35, P<0.01), socioeconomic status (r=-0.18, P<0.01), and substance use (r=-
0.17, P<0.01). Moreover, sugested model for investigating the moderator role of conscientiousness in related
to effect of socioeconomic status, neuroticism, extraversion, openness to experience, and agreeableness on
substance use had excellent fitness (RMSEA=0.04, CFI=0.99, NFI=0.99, GFI=0.99, AGFI=0.96) with data.
Conclusion: The findings showed that personality traits and socioeconomic status, either directly or indirectly,
affected the substance use. In this domain the role of conscientiousness is more prominent because not only
mediates the effect of variables with a negative effect on substance use (such as extroversion), also moderates
the effect of variables with a positive effect on substance use (such as socioeconomic status).


Keywords


Path analysis, Personality, Substance use, Moderator variable, Conscientiousness, Socioeconomic status.

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