Diagnostic Inventory for Screening Children (DISC)

Norm Tables

December, 1994

Jeanette R. Amdur,
Ph.D. Marian K. Mainland, M.A.
Kevin C.H. Parker Ph.D.

Mainland Consulting Inc.
3723 Lobsinger Line
St. Clements, Ontario Canada, N0B 2M0


Norm Table 1: Fine Motor

Percentage of Children in Normative Sample Obtaining a Given Score or Less

Age in months

Obtained 0 - 3 4 - 6 7 - 12 13 - 18 19 - 24 25 - 30 31 - 36 37 - 42 43 - 48 49 - 54 55 - 60
<1 2.33 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
2 11.63 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
3 81.40 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
4 100.00 45.95 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
5   72.98 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
6   86.49 3.92 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
7   97.30 41.17 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
8   100.00 74.51 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
9     88.23 6.52 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10     96.07 13.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00
11     96.07 26.08 2.17 0.00 0.00 0.00 0.00 0.00 0.00
12     100.00 76.08 6.52 0.00 0.00 0.00 0.00 0.00 0.00
13       93.47 47.83 4.55 0.00 0.00 0.00 0.00 0.00
14       95.64 67.39 9.10 0.00 0.00 0.00 0.00 0.00
15       97.81 89.14 20.46 5.17 0.00 0.00 0.00 0.00
16       99.98 93.49 38.64 6.89 0.00 0.00 0.00 0.00
17       100.00 100.00 61.37 10.34 0.00 0.00 0.00 0.00
18           75.01 20.68 0.00 0.00 0.00 0.00
19           81.83 29.30 1.69 0.00 0.00 0.00
20           90.92 37.92 8.47 1.64 0.00 0.00
21           97.74 67.23 11.86 1.64 0.00 0.00
22           97.74 82.75 25.42 3.28 0.00 0.00
23           100.00 91.37 55.93 6.56 0.00 0.00
24             94.82 69.49 27.87 2.82 0.00
25             94.82 86.44 63.94 28.17 7.41
26             100.00 96.61 83.61 53.52 25.93
27               100.00 100.00 100.00 100.00


Norm Table 2: Receptive Language

Percentage of Children in Normative Sample Obtaining a Given Score or Less

Age in months

Obtained 0 - 3 4 - 6 7 - 12 13 - 18 19 - 24 25 - 30 31 - 36 37 - 42 43 - 48 49 - 54 55 - 60
<1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
2 11.63 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
3 65.12 2.70 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
4 93.03 21.62 1.96 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
5 100.00 56.76 5.88 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
6   97.30 17.64 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
7   97.30 31.37 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
8   100.00 43.13 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
9     74.50 13.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10     98.03 50.00 4.44 0.00 0.00 0.00 0.00 0.00 0.00
11     100.00 76.09 8.88 0.00 0.00 0.00 0.00 0.00 0.00
12       78.26 13.32 0.00 0.00 0.00 0.00 0.00 0.00
13       84.78 15.54 0.00 0.00 0.00 0.00 0.00 0.00
14       93.48 26.65 2.27 0.00 0.00 0.00 0.00 0.00
15       97.83 48.87 9.09 1.72 0.00 0.00 0.00 0.00
16       97.83 62.20 13.64 1.72 0.00 0.00 0.00 0.00
17       97.83 86.64 22.73 5.17 0.00 0.00 0.00 0.00
18       100.00 93.31 40.91 12.07 0.00 0.00 0.00 0.00
19         95.53 65.91 24.14 1.69 0.00 0.00 0.00
20         97.75 88.64 43.11 5.08 0.00 0.00 0.00
21         100.00 97.73 56.90 20.33 0.00 0.00 0.00
22           97.73 81.04 45.75 14.75 4.23 0.00
23           100.00 81.04 57.61 27.83 4.23 1.85
24             94.83 67.78 37.70 12.68 3.70
25             98.28 81.34 54.09 29.58 14.81
26             100.00 89.47 78.68 57.75 38.88
27               100.00 100.00 100.00 100.00


Norm Table 3: Expressive Language

Percentage of Children in Normative Sample Obtaining a Given Score or Less

Age in months

Obtained 0 - 3 4 - 6 7 - 12 13 - 18 19 - 24 25 - 30 31 - 36 37 - 42 43 - 48 49 - 54 55 - 60
<1 6.982 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
2 46.51 2.70 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
3 74.42 2.70 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
4 83.72 5.40 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
5 90.72 27.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
6 97.68 81.07 16.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
7 100.00 100.00 34.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
8     52.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
9     68.34 4.35 2.17 0.00 0.00 0.00 0.00 0.00 0.00
10     92.00 26.09 2.17 0.00 0.00 0.00 0.00 0.00 0.00
11     96.00 54.35 4.34 0.00 0.00 0.00 0.00 0.00 0.00
12     100.00 84.78 6.51 0.00 0.00 0.00 0.00 0.00 0.00
13       91.30 13.03 0.00 0.00 0.00 0.00 0.00 0.00
14       95.65 19.55 2.27 0.00 0.00 0.00 0.00 0.00
15       97.82 47.81 4.54 1.72 0.00 0.00 0.00 0.00
16       97.82 69.55 13.63 3.44 0.00 0.00 0.00 0.00
17       100.00 93.46 40.90 5.16 0.00 0.00 0.00 0.00
18         95.63 49.99 12.06 0.00 0.00 0.00 0.00
19         97.80 77.26 25.85 0.00 0.00 0.00 0.00
20         100.00 93.17 34.47 0.00 0.00 0.00 0.00
21           95.44 58.61 10.17 3.28 0.00 0.00
22           97.71 63.78 23.73 4.92 1.41 0.00
23           100.00 81.02 47.46 14.76 1.41 0.00
24             100.00 64.41 31.15 12.68 3.70
25               84.75 77.05 43.67 24.07
26               96.61 91.80 76.06 59.26
27               100.00 100.00 100.00 100.00


Norm Table 4: Gross Motor

Percentage of Children in Normative Sample Obtaining a Given Score or Less

Age in months

Obtained 0 - 3 4 - 6 7 - 12 13 - 18 19 - 24 25 - 30 31 - 36 37 - 42 43 - 48 49 - 54 55 - 60
<1 2.33 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
2 23.26 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
3 58.14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
4 88.37 24.32 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
5 97.67 48.64 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
6 100.00 83.78 3.92 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
7   94.59 17.65 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
8   100.00 64.71 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
9     78.44 2.17 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10     84.32 4.34 0.00 0.00 0.00 0.00 0.00 0.00 0.00
11     96.08 17.38 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12     98.04 49.99 0.00 0.00 0.00 0.00 0.00 0.00 0.00
13     100.00 73.90 13.04 0.00 0.00 0.00 0.00 0.00 0.00
14       86.94 36.96 13.64 0.00 0.00 0.00 0.00 0.00
15       93.46 49.99 18.19 0.00 0.00 0.00 0.00 0.00
16       100.00 73.90 27.28 10.34 0.00 0.00 0.00 0.00
17         91.29 52.28 10.34 1.69 0.00 0.00 0.00
18         100.00 77.28 29.31 5.08 0.00 0.00 0.00
19           93.19 51.72 15.25 0.00 0.00 0.00
20           97.74 65.51 23.72 1.64 0.00 0.00
21           97.74 74.13 42.36 11.48 2.82 0.00
22           97.74 87.92 61.00 26.23 11.27 0.00
23           100.00 98.26 89.81 63.93 26.76 1.85
24             100.00 98.28 78.68 42.25 7.41
25               100.00 96.71 80.28 25.93
26                 96.71 95.77 55.56
27                 100.00 100.00 100.00


Norm Table 5: Auditory Attention and Memory

Percentage of Children in Normative Sample Obtaining a Given Score or Less

Age in months

Obtained 0 - 3 4 - 6 7 - 12 13 - 18 19 - 24 25 - 30 31 - 36 37 - 42 43 - 48 49 - 54 55 - 60
<1 23.81 2.70 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
2 64.29 5.40 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
3 76.19 8.10 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
4 95.24 21.61 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
5 97.62 45.93 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
6 97.62 83.77 5.88 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
7 100.00 86.47 11.76 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
8   97.28 29.41 2.17 0.00 0.00 0.00 0.00 0.00 0.00 0.00
9   100.00 58.82 4.34 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10     96.07 13.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00
11     98.03 63.04 4.35 0.00 0.00 0.00 0.00 0.00 0.00
12     98.03 80.43 10.87 0.00 0.00 0.00 0.00 0.00 0.00
13     100.00 93.47 13.04 0.00 0.00 0.00 0.00 0.00 0.00
14       97.82 28.26 2.27 0.00 0.00 0.00 0.00 0.00
15       100.00 54.35 6.82 0.00 0.00 0.00 0.00 0.00
16         65.22 20.46 1.72 0.00 0.00 0.00 0.00
17         84.79 43.19 5.17 0.00 0.00 0.00 0.00
18         93.49 54.55 10.34 0.00 0.00 0.00 0.00
19         97.84 70.46 20.68 1.69 0.00 0.00 0.00
20         97.84 81.82 37.92 8.47 3.28 1.41 0.00
21         100.00 100.00 70.68 25.42 9.84 1.41 0.00
22             79.306 35.59 13.12 2.82 0.00
23             86.203 52.54 27.87 2.82 0.00
24             93.10 67.79 37.714 11.27 1.85
25             94.82 83.04 55.74 26.76 9.62
26             100.00 94.90 75.41 42.25 31.48
27               100.00 100.00 100.00 100.00


Norm Table 6: Visual Attention and Memory

Percentage of Children in Normative Sample Obtaining a Given Score or Less

Age in months

Obtained 0 - 3 4 - 6 7 - 12 13 - 18 19 - 24 25 - 30 31 - 36 37 - 42 43 - 48 49 - 54 55 - 60
<1 27.90 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
2 51.16 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
3 79.07 5.41 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
4 86.05 10.82 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
5 97.682 48.66 1.96 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
6 100.00 78.39 3.92 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
7   100.00 25.49 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
8     41.18 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
9     94.12 10.87 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10     98.04 13.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00
11     98.04 23.91 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12     100.00 39.13 0.0087 0.00 0.00 0.00 0.00 0.00 0.00
13       67.39 0.00 0.00 0.00 0.00 0.00 0.00 0.00
14       82.61 19.57 0.00 0.00 0.00 0.00 0.00 0.00
15       93.48 43.48 2.27 0.00 0.00 0.00 0.00 0.00
16       97.83 67.39 15.91 1.72 0.00 0.00 0.00 0.00
17       98.83 89.13 38.64 8.62 0.00 0.00 0.00 0.00
18       100.00 95.65 47.73 10.34 0.00 0.00 0.00 0.00
19         95.65 68.18 20.68 5.08 0.00 0.00 0.00
20         100.00 81.82 31.02 8.47 0.00 0.00 0.00
21           93.18 53.43 16.94 1.64 0.00 0.00
22           100.00 68.95 35.58 6.56 0.00 0.00
23             84.473 52.53 11.48 4.23 0.00
24             89.64 69.48 14.76 4.23 0.00
25             94.81 83.04 37.71 5.64 1.85
26             98.28 91.51 70.50 40.85 24.07
27             100.00 100.00 100.00 100.00 100.00


Norm Table 7: Self Help

Percentage of Children in Normative Sample Obtaining a Given Score or Less

Age in months

Obtained 0 - 3 4 - 6 7 - 12 13 - 18 19 - 24 25 - 30 31 - 36 37 - 42 43 - 48 49 - 54 55 - 60
<1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
2 2.33 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
3 23.36 2.70 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
4 83.73 27.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
5 100.00 78.37 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
6   89.18 1.96 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
7   94.59 15.69 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
8   100.00 21.57 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
9     62.75 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10     86.28 8.70 0.00 0.00 0.00 0.00 0.00 0.00 0.00
11     94.12 19.57 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12     98.04 47.83 0.0087 0.00 0.00 0.00 0.00 0.00 0.00
13     98.04 67.40 0.00 0.00 0.00 0.00 0.00 0.00 0.00
14     98.04 80.44 15.22 4.55 0.00 0.00 0.00 0.00 0.00
15     100.00 86.96 39.13 9.10 1.75 0.00 0.00 0.00 0.00
16       91.31 63.04 34.10 5.26 0.00 0.00 0.00 0.00
17       100.00 89.13 65.92 5.26 1.69 0.00 0.00 0.00
18         93.48 79.56 14.03 1.69 0.00 0.00 0.00
19         93.48 81.83 31.57 8.47 1.64 1.41 0.00
20         98.83 88.65 40.34 11.86 9.84 1.41 0.00
21         100.00 90.92 61.39 20.33 16.40 7.04 0.00
22           97.74 73.67 42.36 29.51 15.49 3.70
23           100.00 82.44 57.61 39.35 21.12 11.11
24             87.70 83.03 55.74 29.57 24.07
25             92.96 84.72 77.05 49.29 35.18
26             98.25 93.19 90.16 71.83 61.11
27             100.00 100.00 100.00 100.00 100.00


Norm Table 8: Social

Percentage of Children in Normative Sample Obtaining a Given Score or Less

Age in months

Obtained 0 - 3 4 - 6 7 - 12 13 - 18 19 - 24 25 - 30 31 - 36 37 - 42 43 - 48 49 - 54 55 - 60
<1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
2 6.98 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
3 16.28 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
4 76.75 10.81 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
5 97.68 32.43 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
6 100.00 40.54 7.84 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
7   67.57 11.76 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
8   89.19 29.41 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
9   100.00 56.86 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
10     86.27 2.17 0.00 0.00 0.00 0.00 0.00 0.00 0.00
11     94.11 17.39 0.00 0.00 0.00 0.00 0.00 0.00 0.00
12     96.07 41.30 0.01 0.00 0.00 0.00 0.00 0.00 0.00
13     96.65 56.52 6.52 0.00 0.00 0.00 0.00 0.00 0.00
14     100.00 67.39 13.04 4.55 1.72 0.00 0.00 0.00 0.00
15       73.91 23.91 11.37 1.72 0.00 0.00 0.00 0.00
16       86.95 41.30 15.92 1.72 0.00 0.00 0.00 0.00
17       91.30 56.52 22.74 5.17 0.00 0.00 0.00 0.00
18       96.35 76.09 31.83 6.89 1.69 1.64 0.00 0.00
19       100.00 89.13 45.47 13.79 3.38 3.28 0.00 0.00
20         97.83 59.11 22.41 8.46 6.56 0.00 0.00
21         100.00 72.75 27.58 16.93 11.48 7.04 0.00
22           84.11 39.65 25.40 14.76 11.27 9.26
23           90.93 48.27 37.26 24.60 14.09 11.11
24           93.20 62.06 54.21 49.19 25.36 24.07
25           93.20 82.75 71.16 63.94 45.08 38.88
26           97.73 96.54 86.41 8l.97 69.02 64.81
27           100.00 100.00 100.00 100.00 100.00 100.00



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