Table 1 Comparisons of the present Swe-CBSEI and Lowe’s (1993) original study for nulliparous women, in terms of descriptive statistics and internal consistency reliability with Cronbach’s coefficient α

Outcome-AL

Range

30-187

74-150

Mean

110. 9

128.5

Median

116.0

SD

25.7

14.3

Cronbach’s alpha coefficient α.

0.89

0.86

Efficacy-AL

Range

19-150

15-150

Mean

95.0

101.1

Median

95.0

SD

23.3

21.5

Cronbach’s alpha coefficient α.

0.92

0.93

Outcome-SS

Range

20-160

62-160

Mean

116.2

130.0

Median

121.0

SD

27.4

20.1

Cronbach’s alpha coefficient α.

0.94

0.90

Efficacy-SS

Range

16-160

16-169

Mean

99.2

104.4

Median

101.0

SD

27.5

26.4

Cronbach’s alpha coefficient α.

0.94

0.95

Outcome-Total

Range

1-310

156-310

Mean

223.5

258.4

SD

52.7

31.6

Cronbach’s alpha coefficient α.

0.95

Efficacy-Total

Range

35-310

31-310

Mean

191.3

205.5

SD

50.7

45.8

Cronbach’s alpha coefficient α.

0.96