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Table 2 Intervention strategies, ranging from lowest to highest endorsement, with mean endorsement (SD), component loadings (loadings > .40 indicated in bold) from the Principal Component Analysis, and item-total correlations with the relevant subscale

From: Hungry for an intervention? Adolescents’ ratings of acceptability of eating-related intervention strategies

Intervention strategy Mean acceptability (SD) PCA factor loadings component 1 PCA factor loadings component 2 Item-total correlations subscale “promoting healthy eating”b Item-total correlations subscale “discouraging unhealthy eating”b
1. Unhealthy foods and drinks should be banned for sale to young people 2.28 (1.29) .10 .87   .82
2. Advertising of snacks and soft drinks to young people should be prohibited 2.54 (1.25) .16 .82   .81
3. The price of snacks and soft drinks should be increased so that young people consume less 2.78 (1.33) .27 .76   .81
4. Schools should not sell unhealthy snacks and soft drinks 2.92 (1.27) .36 .69   .78
5. Snacks and soft drinks should have health warning labelsa 3.30 (1.25) .49 .49   .69
6. It is a good idea to have rules at home about eating fruits and vegetables 3.55 (1.10) .80 .21 .82  
7. Teachers should encourage young people to eat healthily 3.55 (1.10) .70 .35 .78  
8. Young people should learn more about healthy eating in school 3.62 (1.10) .80 .23 .83  
9. Healthy foods and drinks should be cheaper than unhealthy products 3.64 (1.18) .61 .26 .70  
10. It is important that parents talk with their children about the importance of healthy eating 3.82 (1.07) .84 .04 .79  
Principal Component Analysis Eigenvalue 4.86 1.47   
Explained variance 48.6 % 14.7 %   
  Cronbach’s alpha    .84 .84
  1. aItem 5 loaded equally on both factors. It is included in component 2 based on theoretical reasoning. Therefore, the subscale “strategies promoting healthy eating” was composed of items 6 to 10, while the subscale “strategies discouraging unhealthy eating” was composed of items 1 to 5. bAll correlations significant at p < .01