Table 3.  Internal consistency coefficients in pilot studies 1, 2 and final study.

Subscale

Number of items

Cronbach’s alpha
   

Spanish version
N = 168, 61*, 613†

French version
N = 80, 53*, 377†

German version
N = 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.