Variable | Number of questions | Cronbach’s alpha coefficients | Average | Standard deviation | Range of achievable values | Range of values obtained | Percentage of average score obtained |
---|---|---|---|---|---|---|---|
Activity related affect | 8 | 0.76 | 30.74 | 5.34 | 8–40 | 8–40 | 71 |
Perceived self- efficacy | 7 | 0.85 | 23.33 | 6.52 | 7–35 | 7–35 | 58 |
Perceived barriers of action | 13 | 0.85 | 31.22 | 10.14 | 13–65 | 13–65 | 35 |
Perceived benefits of action | 9 | 0.62 | 63.45 | 4.60 | 9–45 | 17–45 | 69 |
Interpersonal influences | 13 | 0.81 | 45.08 | 10.16 | 13–65 | 13–65 | 55 |
Situational influences | 9 | 0.76 | 24.54 | 6.63 | 9–45 | 9–45 | 43 |
Commitment to plan of action | 3 | 0.79 | 9 | 3.21 | 3–15 | 3–15 | 51 |