|
Changes in outcomes variables during baseline through follow-up. |
|||||
| 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 |
||
|
* p < .05 ** 0 < .005 a = significantly different changes between baseline and post intervention p < .001 – .03. b = significantly different changes between post intervention and follow-up p < .001 – .03. c = significantly different changes between baseline and follow-up p < .001 – .04. | |||||
Taymoori et al. International Journal of Behavioral Nutrition and Physical Activity 2008 5:18 doi:10.1186/1479-5868-5-18 |
|||||