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Table 5 Transformation of WMT 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 < −3.25 < 17 < 51 0-4 1 < −2.40 < 26 < 64 0-5 1 < −3.27 < 17 < 51 0-3 1 < −3.19 < 18 < 52
2 1 −3.25 17 51 0-4 1 < −2.40 < 26 < 64 0-5 1 < −3.27 < 17 < 51 0-3 1 < −3.19 < 18 < 52
3 2 −3.04 20 54 0-4 1 < −2.40 < 26 < 64 0-5 1 < −3.27 < 17 < 51 0-3 1 < −3.19 < 18 < 52
4 2 −2.82 22 58 0-4 1 < −2.40 < 26 < 64 0-5 1 < −3.27 < 17 < 51 4 1 −3.19 18 52
5 2 −2.61 24 61 5 1 −2.40 26 64 0-5 1 < −3.27 < 17 < 51 5 1 −2.95 20 56
6 2 −2.39 26 64 6 1 −2.16 28 68 6 1 −3.27 17 51 6 1 −2.72 23 59
7 2 −2.18 28 67 7 1 −1.91 31 71 7 1 −3.01 20 55 7 2 −2.48 25 63
8 4 −1.97 30 71 8 3 −1.67 33 75 8 1 −2.75 22 59 8 3 −2.25 28 66
9 5 −1.75 32 74 9 8 −1.43 36 79 9 1 −2.49 25 63 9 3 −2.01 30 70
10 6 −1.54 35 77 10 13 −1.19 38 82 10 3 −2.23 28 67 10 4 −1.78 32 73
11 11 −1.32 37 80 11 18 −0.95 40 86 11 5 −1.97 30 70 11 7 −1.54 35 77
12 17 −1.11 39 83 12 27 −0.71 43 89 12 6 −1.71 33 74 12 10 −1.31 37 80
13 21 −0.89 41 87 13 35 −0.47 45 93 13 9 −1.45 36 78 13 14 −1.07 39 84
14 24 −0.68 43 90 14 43 −0.23 48 97 14 13 −1.19 38 82 14 19 −0.84 42 87
15 28 −0.46 45 93 15 52 0.01 50 100 15 18 −0.93 41 86 15 26 −0.60 44 91
16 34 −0.25 48 96 16 61 0.25 53 104 16 25 −0.67 43 90 16 35 −0.37 46 94
17 42 −0.03 50 99 17 67 0.49 55 107 17 32 −0.41 46 94 17 43 −0.13 49 98
18 48 0.18 52 103 18 71 0.73 57 111 18 39 −0.15 49 98 18 51 0.10 51 102
19 59 0.39 54 106 19 79 0.98 60 115 19 50 0.11 51 102 19 61 0.34 53 105
20 70 0.61 56 109 20 87 1.22 62 118 20 60 0.38 54 106 20 69 0.57 56 109
21 79 0.82 58 112 21 93 1.46 65 122 21 70 0.64 56 110 21 76 0.81 58 112
22 86 1.04 60 116 22 97 1.70 67 125 22 79 0.90 59 113 22 83 1.04 60 116
23 92 1.25 63 119 23 98 1.94 69 129 23 87 1.16 62 117 23 89 1.28 63 119
24 98 1.47 65 122 24 99 2.18 72 133 24 96 1.42 64 121 24 96 1.51 65 123
N 64 N 204 N 204 N 137
Mean 17.16 Mean 14.95 Mean 18.56 Mean 17.57
SD 4.661 SD 4.153 SD 3.838 SD 4.258
Median 18 Median 15 Median 19 Median 18
Skewness −0.811 Skewness 0.020 Skewness −0.625 Skewness −0.549
Kurtosis 0.550 Kurtosis −0.746 Kurtosis −0.036 Kurtosis 0.171
Range 2-24 Range 5-24 Range 6-24 Range 4-24