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Table 3 Determinants of consumption of leek, salsify and vegetables in general in final model

From: Determinants of prebiotic vegetable consumption: the extended theory of planned behaviour

 

Vegetables in general (V)

Leek (L)

Salsify (S)

ß

∆ R2

ß

∆ R2

ß

∆ R2

Predictors

Step 1

 

.08***

 

.04***

 

.02***

  Age (V, L)

.09**

 

.05

 

–

 

  Gender (V, S)

.07**

 

–

 

−.07**

 

  Being vegan (L)

–

 

.06*

 

–

 

  Being vegetarian (L)

–

 

.02

 

–

 

  Diploma (L)

–

 

−.03

 

–

 

  Subject. income (S)

–

 

–

 

.02

 

  Province (Liege) (L)

–

 

.00

 

–

 

Step 2

 

.15***

 

.15***

 

.17***

  Perceived control

.29***

 

.11*

 

−.04

 

  Intention

.12***

 

.25***

 

.13***

 

Step 3

 

.04***

 

.10***

 

.23***

  Habits

.24***

 

.35***

 

.56***

 

Step 4

 

.01*

 

.01**

 

.004*

  Price

−.03

 

.04

 

.10**

 

  Actual control

.06*

 

.02

 

−.01

 

  Availability

−.05

 

.10**

 

−.06

 
  1. Note. *p < .05, **p < .01, ***p < .001, Leek: N = 1267, Salsify: N = 1133, Vegetables: N = 1270, V vegetables in general, L leek, S salsify
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