Martin S. Hagger

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According to the strength model, self-control is a finite resource that determines capacity for effortful control over dominant responses and, once expended, leads to impaired self-control task performance, known as ego depletion. A meta-analysis of 83 studies tested the effect of ego depletion on task performance and related outcomes, alternative(More)
A meta-analysis of empirical studies (N1⁄4 45) adopting Leventhal, Meyer and Nerenz’s (1980) Common Sense Model (CSM) of illness representations is presented. The average corrected intercorrelation matrix for the sample of studies showed that the CSM illness cognition dimensions of consequences, control/cure, identity and timeline followed a logical pattern(More)
PURPOSE A meta-analysis of studies integrating the theory of planned behaviour (TPB) and self-determination theory (SDT) in health contexts is presented. The analysis aimed to provide cumulative empirical support for a motivational sequence in which self-determined motivation from SDT predicts the proximal predictors of intentions and behaviour from the(More)
Based on self-determination theory, the present study developed and evaluated the utility a school-based intervention to change pupils' physical activity intentions and self-reported leisure-time physical activity behaviour. The study evaluated utility of the intervention to promote physical activity participation over a 5-week interval of time. A cluster(More)
The present study tested a motivational sequence in which global-level psychological need satisfaction from self-determination theory influenced intentions and behavior directly and indirectly through contextual-level motivation and situational-level decision-making constructs from the theory of planned behavior. Two samples of university students (N = 511)(More)
The present study examined the validity of an augmented version of Ajzen's (1991) theory of planned behaviour (TPB), adopting second-order latent factors to explain relationships between the differentiated components of the theory constructs. This model was tested on data from two independent samples, for exercise and dieting behaviours, respectively. The(More)
An extended trans-contextual model of motivation for health-related physical activity was tested in samples from four nations. The model proposes a motivational sequence in which perceived autonomy support from teachers in a physical education (PE) context and from peers and parents in a leisure-time physical activity context predict autonomous motivation,(More)
Objective: The study aimed to develop a perceived autonomy support scale for exercise settings (PASSES) in young people. Design: Cross-sectional questionnaire survey. Methods: In Study 1,432 school pupils responded to an initial pool of perceived autonomy support items with physical education (PE) teachers as the source of support. The validity of the(More)
Theoretical approaches to behaviour change are now pervasive in the health psychology literature (Abraham & Michie, 2008; Michie, Johnston, Francis, Hardeman, & Eccles, 2008). Many are developed in the social psychology literature and applied in health contexts to provide a hypothesis-testing framework for empirical investigations into health behaviours and(More)
This study tests the generalizability of the factor pattern, structural parameters, and latent mean structure of a multidimensional, hierarchical model of physical self-concept in adolescents across gender and grade. A children’s version of the Physical Self-Perception Profile (C-PSPP) was administered to seventh-, eighthand ninth-grade high school students(More)