Table 4 Demarcation norm for conversion score of rating scale of health education competence for obstetric nurses and midwife

1

[0, \(\stackrel{-}{x}\)−2.5s)

[0, 51.78)

\([\stackrel{-}{x}-2.5\text{s}, \stackrel{-}{x}-0.5\text{s}\))

[51.78, 76.5)

\([\stackrel{-}{x}-0.5\text{s}, \stackrel{-}{x}+0.5\text{s}\))

[76.5, 88.86)

\([\stackrel{-}{x}+0.5\text{s}, \stackrel{-}{x}+2.5\text{s}\))

[88.86, 113.58)

[\(\stackrel{-}{x}\)+2.5s,100]

[113.58, 100]

0.939**

2

[0, \(\stackrel{-}{x}\)−2.0s)

[0, 57.96)

\([\stackrel{-}{x}-2.0\text{s}, \stackrel{-}{x}-0.5\text{s}\))

[57.96, 76.5)

\([\stackrel{-}{x}-0.5\text{s}, \stackrel{-}{x}+0.5\text{s}\))

[76.5, 88.86)

\([\stackrel{-}{x}+0.5\text{s}, \stackrel{-}{x}+2.0\text{s}\))

[88.86, 107.4)

[\(\stackrel{-}{x}\)+2.0s,100]

[107.4, 100]

0.948**

3

[0, \(\stackrel{-}{x}\)−1.5s)

[0, 64.14)

\([\stackrel{-}{x}-1.5\text{s}, \stackrel{-}{x}-0.5\text{s}\))

[64.14, 76.5)

\([\stackrel{-}{x}-0.5\text{s}, \stackrel{-}{x}+0.5\text{s}\))

[76.5, 88.86)

\([\stackrel{-}{x}+0.5\text{s}, \stackrel{-}{x}+1.5\text{s}\))

[88.86, 101.22)

[\(\stackrel{-}{x}\)+1.5s, 100]

[101.22, 100]

0.956**

4

[0, \(\stackrel{-}{x}\)−1.0s)

[0, 70.32)

\([\stackrel{-}{x}-1.0\text{s}, \stackrel{-}{x}-0.5\text{s}\))

[70.32, 76.5)

\([\stackrel{-}{x}-0.5\text{s}, \stackrel{-}{x}+0.5\text{s}\))

[76.5, 88.86)

\([\stackrel{-}{x}+0.5\text{s}, \stackrel{-}{x}+1.0\text{s}\))

[88.86, 95.04)

[\(\stackrel{-}{x}\)+1.0s, 100]

[95.04, 100]

0.970**

5

[0, \(\stackrel{-}{x}\)−2.5s)

[0, 51.78)

\([\stackrel{-}{x}-2.5\text{s}, \stackrel{-}{x}-1.0\text{s}\))

[51.78, 70.32)

\([\stackrel{-}{x}-1.0\text{s}, \stackrel{-}{x}+1.0\text{s}\))

[70.32, 95.04)

\([\stackrel{-}{x}+1.0\text{s}, \stackrel{-}{x}+2.5\text{s}\))

[95.04, 113.58)

[\(\stackrel{-}{x}\)+2.5s, 100]

[113.58, 100]

0.898**

6

[0, \(\stackrel{-}{x}\)−2.0s)

[0, 57.96)

\([\stackrel{-}{x}-2.0\text{s}, \stackrel{-}{x}-1.0\text{s}\))

[57.96, 70.32)

\([\stackrel{-}{x}-1.0\text{s}, \stackrel{-}{x}+1.0\text{s}\))

[70.32, 95.04)

\([\stackrel{-}{x}+1.0\text{s}, \stackrel{-}{x}+2.0\text{s}\))

[95.04, 107.4)

[\(\stackrel{-}{x}\)+2.0s, 100]

[107.4, 100]

0.896**

7

[0, \(\stackrel{-}{x}\)−1.5s)

[0, 64.14)

\([\stackrel{-}{x}-1.5\text{s}, \stackrel{-}{x}-1.0\text{s}\))

[64.14, 70.32)

\([\stackrel{-}{x}-1.0\text{s}, \stackrel{-}{x}+1.0\text{s}\))

[70.32, 95.04)

\([\stackrel{-}{x}+1.0\text{s}, \stackrel{-}{x}+1.5\text{s}\))

[95.04, 101.22)

[\(\stackrel{-}{x}\)+1.5s, 100]

[101.22, 100]

0.881**

8

[0, \(\stackrel{-}{x}\)−2.5s)

[0, 51.78)

\([\stackrel{-}{x}-2.5\text{s}, \stackrel{-}{x}-1.5\text{s}\))

[51.78, 64.14)

\([\stackrel{-}{x}-1.5\text{s}, \stackrel{-}{x}+1.5\text{s}\))

[64.14, 101.22)

\([\stackrel{-}{x}+1.5\text{s}, \stackrel{-}{x}+2.5\text{s}\))

[101.22, 113.58)

[\(\stackrel{-}{x}\)+2.5s, 100]

[113.58, 100]

0.414**

9

[0, \(\stackrel{-}{x}\)−2.0s)

[0, 57.96)

\([\stackrel{-}{x}-2.0\text{s}, \stackrel{-}{x}-1.5\text{s}\))

[57.96, 64.14)

\([\stackrel{-}{x}-1.5\text{s}, \stackrel{-}{x}+1.5\text{s}\))

[64.14, 101.22)

\([\stackrel{-}{x}+1.5\text{s}, \stackrel{-}{x}+2.0\text{s}\))

[101.22, 107.4)

[\(\stackrel{-}{x}\)+2.0s, 100]

[107.4, 100]

0.413**

10

[0, \(\stackrel{-}{x}\)−2.5s)

[0, 51.78)

\([\stackrel{-}{x}-2.5\text{s}, \stackrel{-}{x}-2.0\text{s}\))

[51.78, 57.96)

\([\stackrel{-}{x}-2.0\text{s}, \stackrel{-}{x}+2.0\text{s}\))

[57.96, 107.4)

\([\stackrel{-}{x}+2.0\text{s}, \stackrel{-}{x}+2.5\text{s}\))

[107.4, 113.58

[\(\stackrel{-}{x}\)+2.5s, 100]

[113.58, 100]

0.323**