Table 4 Changes in outcomes variables during baseline through follow-up.

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