|
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.
