A meta-analysis of techniques to promote motivation for health behaviour change from a self-determination theory perspective

Fiona Gillison, Peter Rouse, Martyn Standage, Simon Sebire, Richard M Ryan

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Abstract

A systematic review and meta-analysis was conducted of the techniques used to promote psychological need satisfaction and motivation within health interventions based on self-determination theory (SDT; Ryan & Deci, 2017). Eight databases were searched from 1970-2017. Studies including a control group and reporting pre- and post-intervention ratings of SDT-related psychosocial mediators (namely perceived autonomy support, need satisfaction and motivation) with children or adults were included. Risk of bias was assessed using items from the Cochrane risk of bias tool. 2496 articles were identified of which 74 met inclusion criteria; 80% were RCTs or cluster RCTs. Techniques to promote need supportive environments were coded according to two established taxonomies (BCTv1 and MIT), and 21 SDT-specific techniques, and grouped into 18 SDT based strategies. Weighted mean effect sizes were computed using a random effects model; perceived autonomy support g=0.84, autonomy g=0.81, competence g=0.63, relatedness g=0.28, and motivation g=0.41. One-to-one interventions resulted in greater competence satisfaction than group-based (g=0.96 vs. 0.28), and competence satisfaction was greater for adults (g=0.95) than children (g=0.11). Meta-regression analysis showed that individual strategies had limited independent impact on outcomes, endorsing the suggestion that a need supportive environment requires the combination of multiple co-acting techniques.
LanguageEnglish
JournalHealth Psychology Review
Early online date8 Oct 2018
DOIs
StatusE-pub ahead of print - 8 Oct 2018

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Personal Autonomy
Health Behavior
Meta-Analysis
Motivation
Mental Competency
Regression Analysis
Databases
Psychology
Control Groups
Health

Cite this

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title = "A meta-analysis of techniques to promote motivation for health behaviour change from a self-determination theory perspective",
abstract = "A systematic review and meta-analysis was conducted of the techniques used to promote psychological need satisfaction and motivation within health interventions based on self-determination theory (SDT; Ryan & Deci, 2017). Eight databases were searched from 1970-2017. Studies including a control group and reporting pre- and post-intervention ratings of SDT-related psychosocial mediators (namely perceived autonomy support, need satisfaction and motivation) with children or adults were included. Risk of bias was assessed using items from the Cochrane risk of bias tool. 2496 articles were identified of which 74 met inclusion criteria; 80{\%} were RCTs or cluster RCTs. Techniques to promote need supportive environments were coded according to two established taxonomies (BCTv1 and MIT), and 21 SDT-specific techniques, and grouped into 18 SDT based strategies. Weighted mean effect sizes were computed using a random effects model; perceived autonomy support g=0.84, autonomy g=0.81, competence g=0.63, relatedness g=0.28, and motivation g=0.41. One-to-one interventions resulted in greater competence satisfaction than group-based (g=0.96 vs. 0.28), and competence satisfaction was greater for adults (g=0.95) than children (g=0.11). Meta-regression analysis showed that individual strategies had limited independent impact on outcomes, endorsing the suggestion that a need supportive environment requires the combination of multiple co-acting techniques.",
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