Table 3. Internal consistency coefficients in pilot studies 1, 2 and final study. Subscale Number of items Cronbach’s alpha Spanish versionN = 168, 61*, 613†  French versionN = 80, 53*, 377†  German versionN = 72, 49*, 375†  Attitude toward PA 15 .571, .927*, .907†  .596, .901*, .908†  .525, .911* .903†  Perceived parental socialization 14 .763, .912*, .925†  .702, .899*, .933†  .711, .903*, .918†  Perceived physical competence 8 .747, .956*, .944†  .696, .939*, .948†  .682, .942*, .953†  Perceived resources support 6 .596, .778*, .752†  .472, .723*, .726†  .493, .696*, .691†  OVERALL 43 .765, .948*, .940†  .716, .936*, .953†  .702, .927*, .937†  Note. * Participants and Cronbach’s alpha for pilot study 2. †  Participants and Cronbach’s alpha for final study.