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Table 1 Exploratory factor analysis results for component one (Items 1–25)

From: Reliability and validity of the modified child and adolescent physical activity and nutrition survey (CAPANS-C) questionnaire examining potential correlates of physical activity participation among Chinese-Australian youth

Item Factor
“How much do you agree with the following things?” Social- parental support Psychological-perceived barriers Psychological- preference/attitude Psychological- perceived ailment Social-family education beliefs Social – parental modelling
Mum doesn’t encourage me to be PA .661      
Dad doesn’t encourage me to be PA .795      
Dad doesn’t help me be PA .691      
Mum doesn’t help me be PA .589      
Mum isn’t physically active with me .659      
Dad isn’t physically active with me .795      
I don’t have proper equipment to play sport .754     
I don't have anyone to be PA with   .617     
I don’t like how being PA makes me feel .568     
There are no parks/sporting grounds near where I live   .410     
I don’t like physical activity    .646    
I don’t think I am very good at PA    .585    
I prefer to watch TV or play electronic games   .558    
I look funny when I am physical activity   .508    
I am scared that I might get hurt if I played a sport   .464    
I have an injury that prevents me being PA    .783   
I have a health problem     .775   
Others laugh at me when I am PA     .681   
Dad thinks education is more important than PA     .848  
Mum thinks education is more important than PA     .791  
Dad does a lot of physical activity       .834
Mum does a lot of physical activity       .710
Eigen value 5.1 2.3 1.9 1.8 1.7 1.4
Cronbach's alpha (α) 0.8 0.6 0.6 0.7 0.8 0.6
Percent variance explained (%) 20.2 9.4 7.2 7.2 6.9 5.8
Weighted factor based scale scorea (median & IQR) 16.8 (14.5, 19.4) 9.9 (8.9, 11.1) 11.2 (10.0, 12.6) 11.2 (9.6, 11.2) 3.3 (3.3, 5.8) 4.7 (3.9, 6.9)
Unweighted factor based scale scoreb (median & IQR) 24.5 (21.0, 28.0) 17.0 (15.0, 19.0) 20.0 (18.0, 23.0) 15.0 (13.0, 15.0) 4.0 (4.0, 7.0) 6.0 (5.0, 9.0)
  1. Note: Principal Component extraction method with Oblim rotation (Kaiser Normalisation); a = weighted factor based scale score using the method described by de Vaus; b = Unweighted factor based scale score mean; and PA = physically active or physical activity and  = Item has been reversely coded so that a higher score is positively linked with physical activity participation.