Table 1

Pearson correlations between all items (PP items p1 to p6; NP items n1 to n6)

p2
 p3
 p4
 p5
 p6
 n1
 n2
 n3
 n4
 n5
 n6
p1
 0.43
 0.41
 0.47
 0.43
 0.39
 0.37
 0.38
 0.38
 0.39
 0.40
 0.36
p2
 -
 0.49
 0.43
 0.40
 0.38
 0.27
 0.25
 0.34
 0.33
 0.38
 0.39
p3
 -
 -
 0.36
 0.47
 0.38
 0.24
 0.24
 0.33
 0.28
 0.36
 0.32
p4
 -
 -
 -
 0.50
 0.41
 0.32
 0.37
 0.40
 0.39
 0.38
 0.35
p5
 -
 -
 -
 -
 0.48
 0.33
 0.36
 0.42
 0.41
 0.42
 0.41
p6
 -
 -
 -
 -
 -
 0.39
 0.40
 0.42
 0.51
 0.48
 0.49
n1
 -
 -
 -
 -
 -
 -
 0.58
 0.54
 0.57
 0.51
 0.44
n2
 -
 -
 -
 -
 -
 -
 -
 0.60
 0.60
 0.53
 0.44
n3
 -
 -
 -
 -
 -
 -
 -
 -
 0.60
 0.60
 0.54
n4
 -
 -
 -
 -
 -
 -
 -
 -
 -
 0.69
 0.58
n5
 -
 -
 -
 -
 -
 -
 -
 -
 -
 -
 0.71

Hankins Clinical Practice and Epidemiology in Mental Health 2008 4:10   doi:10.1186/1745-0179-4-10