Table 2 Mean items scores or percentages for experimental and control groups at pre- test and post-test

Knowledge

Knowledge about non-causes of STI (petting, fondling, deep kissing)

.37 (.56)

.31 (.37)

.32 (.37)

.28 (.34)

.38

Knowledge about causes of STI (anal sexual intercourse; vaginal sexual intercourse; mutual masturbation)

.47 (.46)

.64 (.43)

.44 (.37)

.58 (.38)

2.20

Knowledge about non-causes of HIV (petting, fondling, deep kissing)

.38 (.55)

.34 (.38)

.27 (.34)

.30 (.34)

6.02*

Knowledge about non-causes of pregnancy (petting, fondling, deep kissing)

.93 (.45)

.89 (.34)

.90 (.20)

.90 (.21)

.16

Knowledge causes of pregnancy (vaginal sexual intercourse; not anal intercourse)

.26 (.44)

.23 (.42)

.22 (.32)

.20 (.31)

.28

Beliefs

Beliefs about causes of pregnancy

3.76 (.99)

4.18 (.89)

3.78 (.98)

4.03 (.89)

11.16**

Beliefs about causes of HIV

3.60 (.96)

3.74 (.98)

3.53 (.97)

3.72 (.93)

.27

Beliefs about causes of STI

3.27 (.96)

3.58 (.89)

3.25 (.96)

3.51 (.87)

.67

Risk perception (perceived risk and perceived severity)

Risk perception towards HIV

3.92 (.94)

3.90 (.93)

3.89 (.94)

3.95 (.90)

1.07

Risk perception towards STI

3.45 (1.00)

3.55 (.95)

3.49 (.97)

3.55 (.94)

.73

Risk perception towards pregnancy

4.00 (.90)

4.04 (.88)

3.94 (.89)

4.02 (.87)

.21

Delay

Attitudes

4.10 (.97)

4.22 (.94)

4.11 (.95)

4.16 (.97)

1.51

Perceived social norm (single item)

3.59 (1.37)

3.89 (1.24)

3.69 (1.33)

3.78 (1.29)

7.15**

Self-efficacy

4.02 (1.03)

4.17 (.97)

3.94 (1.04)

4.12 (.98)

.03

Intention-1

4.01 (1.27)

4.16 (1.15)

3.93 (1.29)

3.94 (1.26)

4.11*

Intention-2

.91 (.28)

.92 (.28)

.92 (.28)

.87 (.34)

6.98**

Condom use

Attitude (wise to use a condom)

3.78 (1.09)

3.82 (1.04)

3.81 (1.07)

3.74 (1.12)

4.56*

Attitude (pleasant to use a condom)

3.52 (1.29)

3.27 (1.16)

3.54 (1.29)

3.37 (1.22)

1.02

Perceived social norm towards condom use

3.79 (1.21)

3.68 (1.24)

3.86 (1.23)

3.80 (1.20)

.26

Self-efficacy towards condom use

3.31 (1.05)

3.37 (1.01)

3.34 (1.04)

3.27 (1.01)

5.09*

Performance behaviour (buy, carry a condom etc.)

1.94 (1.14)

2.14 (1.11)

2.23 (1.25)

2.53 (1.22)

.46

Intention to use a condom

3.70 (1.35)

3.79 (1.27)

3.82 (1.26)

3.75 (1.27)

3.96*

Non-coercive sex

Performance behaviour to escape and avoid situations where unwanted sex could happen

2.24 (1.33)

2.21 (1.27)

2.28 (1.35)

2.25 (1.30)

.000

Attitudes towards using force for getting sex

3.65 (1.04)

3.78 (.97)

3.64 (1.06)

3.69 (1.04)

1.82

Self-efficacy in dealing with coercive sex

3.74 (.82)

3.96 (.79)

3.76 (.77)

3.88 (.76)

5.51*

Intention to deal with coercive sex

3.93 (1.01)

4.02 (.91)

3.95 (.96)

3.93 (.99)

2.69