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Table 2 Factor structure (varimax rotated solution) and reliability of social support scale (N = 196)

From: Validity and reliability of a self-report instrument to assess social support and physical environmental correlates of physical activity in adolescents

Factors / items h 2 Parental support Peer support
Do your parents support you in your sports activity (e.g. by buying sporting goods for you)? 0.47 0.69 0.03
How important is it for your parents that you do sport? 0.50 0.70 −0.04
How much of an interest do your parents have in your sport? 0.66 0.81 −0.08
How often is your sport a topic of conversation in your family? 0.55 0.72 0.17
How often do your parents watch you doing sport? 0.56 0.70 0.27
How often do you do sport with your friends? 0.49 0.24 0.66
How often do you ask your friends if they want to play outside or do sport with you (e.g. playing soccer, riding a bicycle, inline skating)? 0.70 0.00 0.84
How often do your friends ask you if you want to play or do sport with them (e.g. playing soccer, riding a bicycle, inline skating)? 0.73 −0.06 0.85
Variance explained (Overall variance explained =58.2%)   33.7% 24.6%
Rotated eigenvalues   2.69 1.97
Internal Consistency (Cronbach’s alpha)   0.78 0.70
Test-retest reliability (Intra-Class Coefficients)   0.83 0.67
  1. Note: h2 = communality; trend of eigenvalues: 2.84; 1.82; 0.75; 0.71; 0.63; 0.53; 0.40; 0.32.