Personality and drug use: Reciprocal effects across four years |
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| Institution: | 1. Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK, USA;2. Centre for Experimental Medicine, Queen’s University of Belfast, Belfast, Northern Ireland, UK;3. University of Sydney, NHMRC Clinical Trials Centre, Camperdown, Sydney, NSW, Australia;4. Diabetes Service, The Royal Women''s Hospital, Melbourne, Australia;5. Department of Endocrinology, Oslo University Hospital, Oslo, Norway;6. Institute of Clinical Medicine, University of Oslo, Oslo, Norway;7. Department of Gynecology and Obstetrics, Oslo University Hospital, Oslo, Norway;8. Barbara Davis Center for Childhood Diabetes, University of Colorado Health Sciences Center, Aurora, CO, USA;9. Division of Maternal Fetal Medicine, University of North Carolina, Chapel Hill, NC, USA;10. Department of Regenerative Medicine and Cell Biology, Medical University of South Carolina, Charleston, SC, USA;11. Spartanburg Regional Medical Center, Spartanburg, SC, USA;12. Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA;13. Section of Endocrinology and Diabetes, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA;1. Department of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China;2. Department of Child, Adolescent and Women''s Health, School of Public Health, Peking University, Beijing 100191, China |
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| Abstract: | In this paper, the controversy regarding whether attitudes predict behaviour or vice versa, is extended to question the personality and behaviour relationship. The present study examined the reciprocal influence of personality on drug use and drug use on personality from late adolescence to young adulthood using a structural modeling approach. Participants (n = 654) in this longitudinal study completed questionnaires which assessed multiple indicators for latent constructs of alcohol, cannabis, and hard drug use and also for the personality constructs of conscientiousness, extraversion, self-esteem, and social conformity. A series of cross-lagged latent-variable structural models were used to examine the across-time relationships between each pair of drug use and personality constructs separately by sex. More evidence was found for an impact of early personality traits affecting later substance use, rather than for the reverse. Particularly strong effects were noted between early social conformity and less alcohol and hard drug use in young adulthood. Gender differences are also discussed. |
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