Variables | Time | THP N = 55 Mean (SD) | Control N = 52 Mean (SD | HP N = 54 Mean (SD) | Group × time |
---|---|---|---|---|---|
Perceived benefit | Pretest | 2.58 (.67)a | 2.73 (.63)a | 2.88 (.62)a | 3.01* |
Posttest | 3.57 (.40)b | 3.22 (.46) | 3.35 (.73) | ||
Follow-up | 3.41 (.46)c | 3.22 (.46) | 3.38 (.46)c | ||
Perceived barriers | Pretest | 2.89 (.53)a | 2.94 (.55)a | 2.72 (.51)a | 2.40 |
Posttest | 1.78 (.41)b | 2.21 (.60)b | 1.85 (.53)b | ||
Follow-up | 1.97 (.47)c | 2.45 (.52) | 2.01 (.48)c | ||
Perceived self efficacy | Pretest | 1.46 (.46)a | 1.45 (.44)a | 1.46 (.44)a | 7.17** |
Posttest | 2.61 (.66)b | 1.83 (.57)b | 2.45 (.78)b | ||
Follow-up | 1.97 (.70)c | 1.64 (.54) | 2.03 (.65)c | ||
Interpersonal norms | Pretest | 4.07 (2.02)a | 3.46 (1.88)a | 3.93 (2.16)a | 4.37* |
Posttest | 6.16 (4.40)b | 4.39 (1.87) | 4.83 (2.26) | ||
Follow-up | 4.80 (1.56)c | 4.80 (1.56) | 5.20 (2.22)c | ||
Exposure to models | Pretest | 11.45 (4.15)a | 10.58 (3.92) | 9.91 (4.23) | 2.40 |
Posttest | 14.0 (b4.91) | 10.56 (3.74) | 11.17 (4.28) | ||
Follow-up | 12.45 (3.29) | 10.25 (4.47) | 11.89 (4.58)c | ||
Social support | Pretest | 42.73 (7.49)a | 43.42 (7.71)a | 42.56 (6.93)a | 2.52* |
Posttest | 48.96 (6.85) | 43.73 (6.72) | 48.28 (10.33) | ||
Follow-up | 49.05 (6.78)c | 46.31 (7.11) | 48.41 (8.07)c | ||
Preferences | Pretest | 4.81 (2.90)a | 5.20 (3.07)a | 4.85 (3.44)a | 1.69 |
Posttest | 1.83 (1.45)b | 4.07 (2.50) | 2.80 (2.47) | ||
Follow-up | 2.56 (2.46)c | 3.71 (2.66) | 3.19 (2.17)c | ||
Stimulus control | Pretest | 3.39 (1.01)a | 3.07 (.98) | 3.46 (.83) | 3.18* |
Posttest | 4.26 (.56)b | 3.16 (1.01) | 3.67 (1.36) | ||
Follow-up | 3.93 (.70)c | 3.30 (.87) | 3.90 (.74)c | ||
Counter condition | Pretest | 2.97 (.96)a | 2.64 (.98) | 2.99 (.83) | 2.46* |
Posttest | 3.86 (.86)b | 2.78 (.78) | 3.36 (1.29) | ||
Follow-up | 3.36 (.73)c | 2.72 (.85) | 3.29 (1.01) | ||
Mean PA | Pretest | 27.16 (12.02)a | 30.63 (12.29)a | 28.56 (11.30)a | 19.14** |
Posttest | 75.80 (27.52)b | 37.26 (20.45)b | 73.61 (28.73)b | ||
Follow-up | 60.04 (24.87)c | 46.26 (21.89) | 56.79 (27.58)c | ||
Overall time PA | Pretest | 140.88 (62.98)a | 170.33 (77.57)a | 157.32 (72.02)a | 15.50** |
Posttest | 371.19 (129.63)b | 195.96 (99.66)b | 348.08 (139.02)b | ||
Follow-up | 309.96 (134.32)c | 245.35 (101.30) | 285.94 (141.33)c |