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Table 2 Initial analysis test statistic of the nine items of PMH-Scale (items ordered by location)

From: Psychometric evaluation of the Positive Mental Health (PMH) scale using item response theory

PHM-Scale items

Loc

SE

Res

χ2 (df)

p

8) Much of what I do brings me joy.

-0.96

0.10

-2.54

10.80 (5)

0.055

2) I enjoy my life.

-0.65

0.10

-1.31

2.65 (5)

0.754

4) In general, I am confident.

-0.57

0.10

-1.47

9.10 (5)

0.105

3) All in all, I am satisfied with my life.

-0.10

0.09

-2.79

7.88 (5)

0.163

5) I manage well to fulfill my needs.

0.06

0.09

-1.21

9.36 (5)

0.096

7) I feel that I am actually well equipped to deal with life and its difficulties.

0.12

0.09

-1.93

6.53 (5)

0.258

1) I am often carefree and in good spirits.

0.44

0.09

1.40

3.28 (5)

0.656

9) I am a calm, balanced human being.

0.67

0.09

4.95

15.81 (5)

0.007

6) I am in good physical and emotional condition.

1.02

0.09

1.99

7.36 (5)

0.195

  1. Loc (Location) difficulty; SE Standard error, Res (Residual) item fit, χ2 Chi−square, df degrees of freedom, Bonferroni adjusted significance level: 0.005556