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Review
. 2011 Oct;42(2):174-87.
doi: 10.1007/s12160-011-9282-0.

A systematic review and meta-analysis of applications of the Self-Report Habit Index to nutrition and physical activity behaviours

Benjamin Gardner  1 , Gert-Jan de Bruijn, Phillippa Lally
Affiliations
Review

A systematic review and meta-analysis of applications of the Self-Report Habit Index to nutrition and physical activity behaviours

Benjamin Gardner et al. Ann Behav Med. 2011 Oct.

Abstract

Background: Health behaviour models typically neglect habitual action. The Self-Report Habit Index (SRHI) permits synthesis of evidence of the influence of habit on behaviour.

Purpose: The purpose of this study is to review evidence around mean habit strength, habit-behaviour correlations, and habit x intention interactions, from applications of the SRHI to dietary, physical activity, and active travel behaviour.

Method: Electronic database searches identified 126 potentially relevant papers. Twenty-two papers (21 datasets) passed eligibility screening. Mean scores and correlations were meta-analysed using fixed, random and mixed effects, and interactions were synthesised via narrative review.

Results: Twenty-three habit-behaviour correlations and nine habit x intention interaction tests were found. Typical habit strength was located around the SRHI midpoint. Weighted habit-behaviour effects were medium-to-strong (fixed: r + = 0.44; random: r + = 0.46). Eight tests found that habit moderated the intention-behaviour relation.

Conclusion: More comprehensive understanding of nutrition and activity behaviours will be achieved by accounting for habitual responses to contextual cues.

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