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Estimates of the Percentage of
Population Obtaining Given Discrepancies Between Various
WJ III® Tests
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Age |
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Percentage Obtaining
given or greater discrepancy in either direction |
2-3 |
4-5 |
6-8 |
9-13 |
14-19 |
20-39 |
Percentage Obtaining
given or greater discrepancy in a specific direction |
|
|
50 |
11.05 |
8.53 |
8.02 |
7.02 |
6.04 |
5.28 |
25 |
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|
25 |
18.42 |
14.22 |
13.36 |
11.70 |
10.06 |
8.80 |
12.5 |
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Comprehension-Knowledge
(Gc) |
20 |
20.50 |
15.83 |
14.87 |
13.02 |
11.20 |
9.79 |
10 |
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Verbal Comprehension (LK,
LD) |
10 |
26.43 |
20.41 |
19.17 |
16.79 |
14.43 |
12.62 |
5 |
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General Information (K0) |
5 |
31.39 |
24.24 |
22.77 |
19.94 |
17.14 |
14.99 |
2.5 |
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2 |
37.32 |
28.82 |
27.07 |
23.70 |
20.38 |
17.82 |
1 |
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1 |
41.32 |
31.91 |
29.98 |
26.25 |
22.57 |
19.73 |
.5 |
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|
.1 |
52.85 |
40.82 |
38.34 |
33.57 |
28.86 |
25.24 |
.05 |
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Age |
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Percentage Obtaining
given or greater discrepancy in either direction |
2-3 |
4-5 |
6-8 |
9-13 |
14-19 |
20-39 |
Percentage Obtaining
given or greater discrepancy in a specific direction |
|
|
50 |
|
11.53 |
11.34 |
11.43 |
10.14 |
10.25 |
25 |
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25 |
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19.21 |
18.90 |
19.05 |
16.90 |
17.08 |
12.5 |
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Short-term Memory (Gsm) |
20 |
|
21.38 |
21.03 |
21.21 |
18.81 |
19.01 |
10 |
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Numbers Reversed (MW) |
10 |
|
27.56 |
27.11 |
27.34 |
24.25 |
24.50 |
5 |
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Memory for Words (MS) |
5 |
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32.74 |
32.21 |
32.47 |
28.81 |
29.10 |
2.5 |
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2 |
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38.92 |
38.29 |
38.60 |
34.24 |
34.60 |
1 |
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1 |
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43.09 |
42.39 |
42.75 |
37.92 |
38.31 |
.5 |
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.1 |
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55.12 |
54.22 |
54.67 |
48.50 |
49.00 |
.05 |
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Age |
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Percentage Obtaining
given or greater discrepancy in either direction |
2-3 |
4-5 |
6-8 |
9-13 |
14-19 |
20-39 |
Percentage Obtaining
given or greater discrepancy in a specific direction |
|
|
50 |
10.55 |
11.80 |
13.42 |
13.09 |
12.42 |
11.89 |
25 |
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|
25 |
17.59 |
19.67 |
22.36 |
21.82 |
20.70 |
19.82 |
12.5 |
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Visual Processing (Gv) |
20 |
19.58 |
21.89 |
24.89 |
24.29 |
23.04 |
22.06 |
10 |
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Spatial Relations (VZ,
SR) |
10 |
25.24 |
28.22 |
32.08 |
31.31 |
29.70 |
28.44 |
5 |
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Picture Recognition (MV) |
5 |
29.98 |
33.52 |
38.11 |
37.19 |
35.28 |
33.78 |
2.5 |
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2 |
35.64 |
39.85 |
45.30 |
44.21 |
41.94 |
40.15 |
1 |
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|
1 |
39.47 |
44.12 |
50.16 |
48.95 |
46.44 |
44.46 |
.5 |
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.1 |
50.48 |
56.44 |
64.16 |
62.61 |
59.40 |
56.87 |
.05 |
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Age |
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Percentage Obtaining
given or greater discrepancy in either direction |
2-3 |
4-5 |
6-8 |
9-13 |
14-19 |
20-39 |
Percentage Obtaining
given or greater discrepancy in a specific direction |
|
|
50 |
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12.42 |
12.84 |
12.07 |
11.98 |
25 |
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25 |
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20.70 |
21.41 |
20.12 |
19.97 |
12.5 |
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Auditory Processing (Ga) |
20 |
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23.04 |
23.83 |
22.39 |
22.23 |
10 |
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Sound Blending (PC-S) |
10 |
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29.70 |
30.71 |
28.86 |
28.65 |
5 |
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Auditory Attention (UR,
US) |
5 |
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35.28 |
36.48 |
34.29 |
34.03 |
2.5 |
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2 |
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41.94 |
43.37 |
40.76 |
40.46 |
1 |
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1 |
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46.44 | |