Do gamblers eat more salt? Testing a latent trait model of covariance in consumption

Goodwin, Belinda C. and Browne, Matthew and Rockloff, Matthew and Donaldson, Phillip (2015) Do gamblers eat more salt? Testing a latent trait model of covariance in consumption. Journal of Behavioural Addictions, 4 (3). pp. 170-180.

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Abstract

A diverse class of stimuli; including certain foods, substances, media, and economic behaviours; may be described as ‘reward-oriented’ in that they provide immediate reinforcement with little initial investment. Neurophysiological and personality concepts, including dopaminergic dysfunction, reward sensitivity and rash impulsivity, each predict the existence of a latent behavioural trait that leads to increased consumption of all stimuli in this class. Whilst bivariate relationships (co-morbidities) are often reported in the literature, to our knowledge, a multivariate investigation of this possible trait has not been done. We surveyed 1,194 participants (550 Male) on their typical weekly consumption of 11 types of reward-oriented stimuli; including fast food, salt, caffeine, television, gambling products, and illicit drugs. Confirmatory factor analysis was used to compare models in a 3x3 structure; based on the definition of a single latent factor (none, fixed loadings, or estimated loadings), and assumed residual covariance structure (none, a-priori / literature based, or post-hoc / data-driven). The inclusion of a single latent behavioural ‘consumption’ factor significantly improved model fit in all cases. Also confirming theoretical predictions, estimated factor loadings on reward-oriented indicators were uniformly positive, regardless of assumptions regarding residual covariances. Additionally, the latent trait was found to be negatively correlated with the non-reward-oriented indicators of fruit and vegetable consumption. The findings support the notion of a single behavioural trait leading to increased consumption of reward-oriented stimuli across multiple modalities. We discuss implications regarding the concentration of negative lifestyle-related health behaviours.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: © 2015 Akadémiai Kiadó, Budapest.
Faculty / Department / School: Current - Institute for Resilient Regions
Date Deposited: 13 Oct 2016 04:58
Last Modified: 04 Jan 2017 03:34
Uncontrolled Keywords: consumption, latent trait, health behaviour, substance and behavioural addictions, confirmatory factor analysis
Fields of Research : 17 Psychology and Cognitive Sciences > 1701 Psychology > 170106 Health, Clinical and Counselling Psychology
Socio-Economic Objective: C Society > 92 Health > 9204 Public Health (excl. Specific Population Health) > 920401 Behaviour and Health
E Expanding Knowledge > 97 Expanding Knowledge > 970117 Expanding Knowledge in Psychology and Cognitive Sciences
Identification Number or DOI: 10.1556/2006.4.2015.022
URI: http://eprints.usq.edu.au/id/eprint/29850

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