Believing in food addiction: helpful or counter-productive for eating behaviour?

Ruddock, Helen K., Christiansen, Paul, Jones, Andrew, Robinson, Eric, Field, Matt and Hardman, Charlotte A. (2016) Believing in food addiction: helpful or counter-productive for eating behaviour? [Data Collection]

Collection description

These datasets and SPSS syntax are supporting material to Ruddock, H.K., Christiansen, P., Jones, A., Robinson, E., Field.M., & Hardman, C.A. (in press). Believing in Food Addiction: helpful or counterproductive for eating behavior? Obesity. Objective: Obesity is often attributed to an addiction to food and many people believe them-selves to be “food addicts”. However little is known about how such beliefs may affect dietary control and weight management. The current research examined the impact of experimentally manipulating participants’ personal food addiction beliefs on eating behavior. Methods: In two studies, female participants (Study 1:N=64;Study 2:N=90) completed food-related computerized tasks and were given bogus feedback on their performance which indi-cated that they had high-, low- or average- food addiction tendencies. Food intake was then assessed in an ad-libitum taste test. Dietary concern, and time-taken to complete the taste test, were also recorded in Study 2. Results: In Study 1, participants in the high-addiction condition consumed fewer calories than those in the low-addiction condition, F(1,60)=7.61, p=.008, ηp² =0.11. Study 2 replicated and extended this finding showing that the effect of the high-addiction condition on food intake was mediated by increased dietary concern, which reduced the amount of time participants willingly spent exposed to the foods during the taste test, b=-.06(.03),95% confidence interval(CI) = -.13,-.01. Conclusions: Believing oneself to be a food addict is associated with short-term dietary restriction. The longer-term effects on weight management now warrant attention.

Additional information: The two SPSS datasets correspond to Study 1 and Study 2 in the accompanying publication (Ruddock et al., in press). The SPSS syntax files can be used to replicate mediation analyses for High Vs Average and Low vs Average conditions in Study 2. These files are labelled accordingly. Please note that each time the analysis is run it will give slightly different coefficients and confidence intervals due to the bootstrapping procedure used.
Keywords: Food addiction, Beliefs, Eating behavior
Divisions: Faculty of Health and Life Sciences > Institute of Pscychology, Health and Society
Depositing User: Helen Ruddock
Date Deposited: 18 Feb 2016 11:47
Last Modified: 18 Feb 2016 11:47
URI: http://datacat.liverpool.ac.uk/id/eprint/99

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