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Table 8 Transformation of PST subtest scores

From: The screen for cognitive impairment in psychiatry: diagnostic-specific standardization in psychiatric ill patients

< Secondary school

≥ Secondary school

18-39

40-55

18-39

40-55

PD

P

z

T

IQ

PD

P

z

T

IQ

PD

P

z

T

IQ

PD

P

z

T

IQ

0-1

1

< −2.47

< 25

< 63

0

1

−2.16

28

68

0-2

1

< −2.55

< 25

<62

0-2

1

< −1.81

< 32

< 73

0-1

1

< −2.47

< 25

< 63

1

1

−1.86

31

72

0-2

1

< −2.55

< 25

<62

0-2

1

< −1.81

< 32

< 73

2

1

−2.47

25

63

2

3

−1.57

34

76

0-2

1

< −2.55

< 25

<62

0-2

1

< −1.81

< 32

< 73

3

2

−2.12

29

68

3

10

−1.27

37

81

3

1

−2.55

25

62

3

1

−1.81

32

73

4

3

−1.77

32

73

4

20

−0.98

40

85

4

2

−2.20

28

67

4

2

−1.56

34

77

5

9

−1.42

36

79

5

29

−0.69

43

90

5

4

−1.86

31

72

5

6

−1.3

37

80

6

16

−1.07

39

84

6

38

−0.39

46

94

6

8

−1.52

35

77

6

13

−1.05

40

84

7

25

−0.72

43

89

7

49

−0.10

49

99

7

14

−1.18

38

82

7

19

−0.79

42

88

8

38

−0.38

46

94

8

58

0.20

52

103

8

20

−0.84

42

87

8

29

−0.53

45

92

9

48

−0.03

50

100

9

67

0.49

55

107

9

27

−0.50

45

92

9

40

−0.28

47

96

10

59

0.32

53

105

10

78

0.79

58

112

10

41

−0.16

48

98

10

54

−0.02

50

100

11

71

0.67

57

110

11

84

1.08

61

116

11

56

0.18

52

103

11

65

0.24

52

104

12

84

1.02

60

115

12

89

1.37

64

121

12

70

0.52

55

108

12

75

0.49

55

107

13

93

1.37

64

120

13

95

1.67

67

125

13

81

0.86

59

113

13

84

0.75

57

111

14

95

1.71

67

126

14

98

1.96

70

129

14

88

1.20

62

118

14

89

1.00

60

115

15

98

2.06

71

131

15

98

2.26

73

134

15

94

1.54

65

123

15

93

1.26

63

119

16-30

> 98

> 2.06

> 71

> 131

16

99

2.55

76

138

16

97

1.88

69

128

16

95

1.52

65

123

16-30

> 98

> 2.06

> 71

> 131

17-30

99

> 2.55

> 76

> 136

17

99

2.22

72

133

17

96

1.77

68

127

16-30

> 98

> 2.06

> 71

> 131

17-30

99

> 2.55

> 76

> 136

18-30

99

> 2.22

> 72

> 133

18

97

2.03

70

130

16-30

> 98

> 2.06

> 71

> 131

17-30

99

> 2.55

> 76

> 136

18-30

99

> 2.22

> 72

> 133

19

97

2.29

73

134

16-30

> 98

> 2.06

> 71

> 131

17-30

99

> 2.55

> 76

> 136

18-30

99

> 2.22

> 72

> 133

20

98

2.54

75

138

16-30

> 98

> 2.06

> 71

> 131

17-30

99

> 2.55

> 76

> 136

18-30

99

> 2.22

> 72

> 133

21

99

2.80

78

142

16-30

> 98

> 2.06

> 71

> 131

17-30

99

> 2.55

> 76

> 136

18-30

99

> 2.22

> 72

> 133

22

99

3.05

81

146

16-30

> 98

> 2.06

> 71

> 131

17-30

99

> 2.55

> 76

> 136

18-30

99

> 2.22

> 72

> 133

23

99

3.31

83

150

16-30

> 98

> 2.06

> 71

> 131

17-30

99

> 2.55

> 76

> 136

18-30

99

> 2.22

> 72

> 133

24

99

3.57

86

154

16-30

> 98

> 2.06

> 71

> 131

17-30

99

> 2.55

> 76

> 136

18-30

99

> 2.22

> 72

> 133

25

99

3.82

88

157

16-30

> 98

> 2.06

> 71

> 131

17-30

99

> 2.55

> 76

> 136

18-30

99

> 2.22

> 72

> 133

26

99

4.08

91

161

16-30

> 98

> 2.06

> 71

> 131

17-30

99

> 2.55

> 76

> 136

18-30

99

> 2.22

> 72

> 133

27-30

99

> 4.08

> 91

> 161

N

64

N

109

N

202

N

136

Mean

9.08

Mean

7.33

Mean

10.48

Mean

10.08

SD

2.869

SD

3.399

SD

2.939

SD

3.920

Median

9

Median

7

Median

11

Median

10

Skewness

−0.093

Skewness

0.275

Skewness

−0.194

Skewness

1.694

Kurtosis

−0.458

Kurtosis

−0.522

Kurtosis

−0.107

Kurtosis

6.269

Range

2-15

Range

0-16

Range

3-17

Range

3-30