Table 1

Nomological network for the validation of the PURICA-S

Subscales PURICA-SStage 1
Precontemplation
Stage 2
Contemplation
Stage 3
Action
Stage 4
Maintenance
Dimensions
Convergent validity
 ACS 90 subscale AOF−−−/+++++
 ACS 90 subscale AOD−−−/+++++
Criterion validity
 Problem awareness−−−/++++
 Utilisation of information−−−/++++
 Utilisation of services/counselling−−−/++++
 Severity of child overweight (BMI centile)++++/−−−
 Media consumption child++++/−−−
 Physical activity child−−−−−/+++
  • ACS 90 subscales AOF and AOD: higher values on these scales are supposed to positively correlate with stages 3 and 4 (AOD) and stage 2 (AOF).

  • Problem awareness: positive correlation of high problem awareness scores with stages 2, 3, 4. Usage of information and of services/counselling: positive correlation with stages 3 and 4; severity of child overweight: complex relation to the stages of change (parents of highly obese children may be more motivated for change), however a positive correlation of weight and stages 1 (and 2) is assumed.

  • Media consumption: a lot of media consumption (hour/day) is supposed to positively correlate with stages 1 (and 2) and vice versa for stages 3 and 4.

  • Movement behaviour: a lot of movement (hour/day) is supposed to positively correlate with stages 3 (and 4) and vice versa for stages 1 and 2.

  • ACS, Action Control Scale; AOD, prospective and decision-related action; AOF, action orientation subsequent to failure; BMI, body mass index; PURICA-S, Parent Perspective University of Rhode Island Change Assessment-Short.