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Table 3 Multiple Regression Analysis for the Prediction of Weight Change from Weight Management Related Behavior Change Models

From: Predicting short-term weight loss using four leading health behavior change theories

SCT – Weight Management    
Prediction Variables β sr2 p
   Self-efficacy (WEL) -0.46 20.5% < 0.001
   Outcome expectancy 0.02 0.0% 0.783
  R 2 (R 2 adj. ) 20.9% (19.6%) < 0.001
TTM – Weight Management    
   Cognitive processes of change 0.16 1.6% 0.108
   Behavioral processes of change -0.23 3.1% 0.027
   Stages of Change 0.07 0.5% 0.370
   Self-efficacy (WEL) -0.45 19.4% < 0.001
  R 2 (R 2 adj. ) 26.8% (24.3%) < 0.001
TPB – Weight Management    
   Intentions 0.00 0.0% 0.963
   Attitude -0.24 4.0% 0.017
   Subjective norms 0.01 0.0% 0.892
   Perceived behavioral control -0.24 3.7% 0.022
  R 2 (R 2 adj. ) 17.6% (14.8%) < 0.001
  1. All variables were entered in the model; theory-related variables were entered separately in three regression models; TTM- Transtheoretical Model; SCT Social Cognitive Theory; TPB – Theory of Planned Behavior; WEL – Weight Efficacy Lifestyle Questionnaire; R2 adj., R square adjusted; sr2, semi-partial correlation coefficient.