Skip to main content

Advertisement

Table 1 Descriptive Statistics for Baseline and 4-Month Psychosocial Variables

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

   Baseline 4 months     
  N M ± SD M ± SD t   95% CI ES
Exercise        
    TTM/SCT        
   Cognitive processes of change 125 48.07 ± 9.15 52.85 ± 8.77 7.49 *** [6.04–3.51] .53
   Behavioral processes of change 125 43.51 ± 10.22 51.94 ± 9.61 9.45 *** [10.19–6.66] .85
   Self-efficacy (ESE) 126 38.38 ± 4.85 37.98 ± 5.59 -.91   [0.46–(-1.23)] -.08
   Perceived barriers (EPB) 126 29.40 ± 6.22 27.04 ± 6.23 -5.26 *** [(-1.47)-(-3.24)] -.38
   Social support (ESS) 127 29.22 ± 6.82 32.79 ± 7.97 5.39 *** [4.88–2.26] .48
    TPB        
   Intentions 126 12.22 ± 2.04 12.79 ± 1.31 3.04 ** [0.93–0.20] .33
   Attitude 126 42.01 ± 4.28 42.81 ± 3.77 2.31 * [1.49–0.12] .19
   Subjective norms 126 18.81 ± 2.73 18.54 ± 2.66 -1.04   [0.22-(-0.77)] -.09
   Perceived behavioral control 126 25.55 ± 4.56 26.71 ± 4.58 2.80 ** [1.97–0.34] .25
    SDT        
   Interest/Enjoyment (IMI) 125 14.79 ± 3.25 15.70 ± 2.68 4.06 *** [1.35–0.47] .31
   Perceived competence (IMI) 125 12.53 ± 2.76 13.81 ± 2.53 7.60 *** [1.62–0.95] .49
   Importance/Effort (IMI) 125 13.42 ± 2.85 14.93 ± 2.60 6.83 *** [1.95–1.07] .55
   Pressure/Tension (IMI) 125 15.12 ± 2.63 15.72 ± 2.55 3.12 ** [0.98–0.22] .23
   Exercise motivation (IMI) 125 55.65 ± 9.21 60.07 ± 8.33 7.41 *** [5.60–3.24] .50
Weight Management        
    TTM/SCT        
   Cognitive processes of change 124 54.81 ± 12.99 57.91 ± 12.50 3.59 *** [4.83–1.39] .24
   Behavioral processes of change 124 50.21 ± 9.46 56.87 ± 10.48 8.39 *** [8.22–5.08] .67
   Self-efficacy (WEL) 125 117.94 ± 31.57 133.61 ± 27.09 6.28 *** [20.61–10.73] .53
   Outcome expectancy (dream weight) 124 60.02 ± 6.31 60.35 ± 5.95 -2.13   [0.02-(-0.65)] .05
    TPB        
   Intentions 126 25.84 ± 2.69 25.78 ± 2.94 -.23   [0.49-(-0.61)] -.02
   Attitude 126 29.78 ± 4.83 30.83 ± 4.24 2.47 ** [1.88–0.21] .23
   Subjective norms 126 25.04 ± 3.80 24.89 ± 3.45 -.44   [0.50-(-0.79)] -.04
   Perceived behavioral control 126 27.54 ± 4.26 28.51 ± 3.61 2.62 ** [1.70–0.24] .25
  1. TTM/SCT – Transtheoretical Model and Social Cognitive Theory (as they share the self-efficacy construct they are presented together); TPB – Theory of Planned Behavior; SDT – Self Determination Theory; ESE – Exercise Self-Efficacy; EPB – Exercise Perceived Barriers; ESS – Exercise Social Support; IMI – Intrinsic Motivation Inventory; WEL – Weight Efficacy Lifestyle Questionnaire.
  2. * p < 0.05; ** p < 0.01; *** p < 0.001; ES – Effect Size; 95% CI – 95% Confidence Interval for mean difference