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Table 2 Hierarchical regression analyses predicting food choice and beverage intake

From: Self-regulation of healthy nutrition: automatic and controlled processes

Step Predictor Food choice c Mineral water intake Soft drink intake Difference: mineral water intake − soft drink intake
   ΔR 2 β ΔR 2 β ΔR 2 β ΔR 2 β
1 Gender a .01 −.08 .14** −.24* .20*** −.43*** .06+ .13
  Age   −.02   .19+   .10   .17
2 Healthy diet .19** .15 .05 .04 .01   .09* .01
  Preference for healthy food   .20+   .07     .03
  Preference for unhealthy food   −.28**   −.16     −.28**
3 Nutrition IAT b .00   .05* .22* .00   .06* .24*
Total R2   .19**   .23**   .20***   .21**  
N   87   90   90   90  
  1. Note. a1 = female, 0 = male. bHigh scores indicate a stronger association between self + healthy food than between self + unhealthy food. c1 = fruit, 0 = snack
  2. Total R2 and β coefficients are for the final equation of the regression analyses
  3. + p < .10, * p < .05, ** p < .01, *** p < .001