Table 2.
Description of psychosocial variables and psychometric values.
| Variable | Items | Scale |
Internal consistency a |
Test-retest reliability c |
| Intention |
|
|
.84 | .45 |
|
|
I intend to be regularly active in the next month. | Unlikely (+1)/likely (+7) |
|
|
| My plans are to practice physical activities regularly in the next month. | Disagree (+1)/agree (+7) |
|
|
|
| I estimate that my chances of practicing physical activities regularly over the next month are... | Weak (+1)/good (+7) |
|
|
|
| Attitude |
|
|
.58 | .49 |
|
|
I think that practicing physical activities regularly in the next month would be… | Bad (+1)/good (+7) |
|
|
| Useless (+1)/useful (+7) | ||||
|
|
Unenjoyable (+1)/enjoyable (+7) |
|
|
|
|
|
Unpleasant (+1)/pleasant (+7) |
|
|
|
| Self-efficacy |
|
|
.83 | .57 |
|
|
I feel capable of practicing physical activities regularly in the next month. | Disagree (+1)/agree (+7) |
|
|
| For me, practicing physical activities regularly in the next month would be… | Difficult (+1)/easy (+7) |
|
|
|
| How much control do you feel you have over your ability to practice physical activities regularly? | No control (+1)/control (+7) |
|
|
|
| Social influence (subjective norm) |
|
|
.87b | .77 |
|
|
People who are important to me would support me if I were to practice physical activities regularly in the next month. | Disagree (+1)/agree (+7) |
|
|
|
|
People who are important to me think I should practice physical activities regularly in the next month. | Disagree (+1)/agree (+7) |
|
|
| Social influence (descriptive norm) d |
|
|
— | — |
|
|
How many people who are part of your daily life (children, spouse/partner, physician, friends, colleagues, etc) are physically active on a regular basis? | Nobody (+1); a minority (+2); half (+3); a majority (+4); everybody (+5) |
|
|
aInternal consistency reported as Cronbach alpha coefficient for variables of 3 items or more.
bInternal consistency reported as Spearman’s correlation coefficient for variables of 2 items.
cIntraclass correlation coefficient.
dNo data provided for descriptive norm, given the change of scale following the test-retest.