Table 2

ISP-D test-retest diagnosis reliabilities by test-retest time interval

(A)Within 2 weeks of test-retest time interval


ND

SSD

MinD

MDD

Total no.


ND

12

2

0

0

14

SSD

0

8

0

1

9

MinD

3

0

0

2

5

MDD

1

0

1

29

31

Total no.

16

10

1

32

59

Weighted κ

0.801


(B) Between 2 and 4 weeks of test-retest time interval


ND

SSD

MinD

MDD

Total no.


ND

21

4

2

4

31

SSD

7

9

2

5

23

MinD

2

1

2

2

7

MDD

5

2

2

16

25

Total no.

35

16

8

27

86

Weighted κ

0.432


(C) Greater than 4 weeks of test-retest time interval


ND

SSD

MinD

MDD

Total no.


ND

4

4

0

2

10

SSD

2

7

0

0

9

MinD

1

1

2

0

4

MDD

0

3

4

9

16

Total no.

7

15

6

11

39

Weighted κ

0.509


ISP-D: Internet-based Self-assessment Program for Depression; MDD: major depressive disorder; MinD: minor depressive disorder; SSD: subsyndromal depressive disorder; ND: no depression specified.

Lin et al. BMC Psychiatry 2007 7:12   doi:10.1186/1471-244X-7-12

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