TABLES TO ASSIST IN ANALYSING TEST DATA FOR PSY3010 CASE
- S1,2005
(All tables have been derived from data published in the
WAIS-III/WMS-III Technical Manual published by The Psychological Corporation,
San Antonio, 1997 and the Tests Manuals of the WAIS-III, WMS-III, and WTAR)
Differences
Between WAIS-III IQ Scores and Between Index Scores
Required for Statistical Significance at the .05 Level for the 55 to 64 Age
Group
|
|
VIQ – PIQ |
VCI – POI |
VCI – WMI |
POI – PSI |
VCI – PSI |
POI – WMI |
WMI – PSI |
|
p=.05 |
7.90 |
8.54 |
9.08 |
11.53 |
10.91 |
9.81 |
11.93 |
One-Tailed Frequencies of Differences Between
WAIS-III IQ and Index Scores for Individuals with FSIQ of 90 to 109
|
|
Difference |
Frequency |
|
VIQ – PIQ |
21 |
2.9% |
|
VCI – POI |
17 |
9.1% |
|
VCI – WMI |
8 |
27.9% |
|
POI – PSI |
7 |
31.4% |
|
VCI – PSI |
24 |
5.6% |
|
POI – WMI |
-9 |
24.5% |
|
WMI - PSI |
16 |
13.7% |
One-Tailed Frequencies of Differences Between
WAIS-III IQ and Index Scores for Individuals with FSIQ of 110 to 119
|
|
Difference |
Frequency |
|
VIQ – PIQ |
12 |
16.2% |
|
VCI – POI |
11 |
22.7% |
|
VCI – WMI |
8 |
28.7% |
|
POI – PSI |
9 |
29.0% |
|
VCI – PSI |
20 |
11.2% |
|
POI – WMI |
-3 |
43.6% |
|
WMI - PSI |
12 |
22.2% |
Differences Between WMS-III Primary Index Scores
for Statistical Significance at the .05 Level for the 55 to 64 Age Group
|
|
AI – VI |
AI – AD |
VI – VD |
AD – ARD |
AD – VD |
IM - GM |
IM – WM |
GM – WM |
|
p=.05 |
15.0 |
13.8 |
18.1 |
19.7 |
17.1 |
12.8 |
13.8 |
14.1 |
One-Tailed Frequencies of Differences Between
WMS-III Primary Index Scores
|
Comparison |
Test Difference |
Frequency |
Retest Difference |
Frequency |
|
AI – VI |
24 |
7.8% |
23 |
9.5% |
|
AI – AD |
3 |
38.9% |
3 |
38.9% |
|
VI – VD |
6 |
27.6% |
0 |
50.0% |
|
AD – ARD |
-10 |
22.1% |
-12 |
17.8% |
|
AD – VD |
27 |
4.0% |
20 |
11.7% |
|
IM – GM |
0 |
50.0% |
-4 |
30.7% |
|
IM – WM |
17 |
15.5% |
12 |
24.4% |
|
GM – WM |
17 |
14.6% |
8 |
31.1% |
Comparisons of WAIS-III and WMS-III Composites Using
Predicted Difference Method (Based Upon a FSIQ of 106).
|
WMS-III Index |
Predicted |
Obtained |
Difference |
p=.05 |
Frequency |
|
Auditory Immediate |
104 |
108 |
-4 |
16.9 |
N/A |
|
Visual Immediate |
102 |
84 |
18 |
16.9 |
10% |
|
Immediate Memory |
103 |
96 |
7 |
17.1 |
>25% |
|
Auditory Delayed |
103 |
105 |
-2 |
13.7 |
N/A |
|
Visual Delayed |
103 |
78 |
25 |
16.1 |
3% |
|
Aud. Rec. Delayed |
103 |
115 |
-12 |
10.9 |
N/A |
|
General Memory |
104 |
96 |
8 |
15.2 |
25% |
|
Working Memory |
104 |
79 |
25 |
12.0 |
<1% |
Comparisons of WAIS-III and WMS-III Composites Using
Predicted Difference Method (Based Upon a FSIQ of 112).
|
WMS-III Index |
Predicted |
Obtained |
Difference |
p=.05 |
Frequency |
|
Auditory Immediate |
107 |
111 |
-4 |
16.9 |
N/A |
|
Visual Immediate |
104 |
88 |
16 |
16.9 |
10-15% |
|
Immediate Memory |
107 |
100 |
7 |
17.1 |
>25% |
|
Auditory Delayed |
107 |
108 |
-1 |
13.7 |
N/A |
|
Visual Delayed |
105 |
88 |
17 |
16.1 |
10% |
|
Aud. Rec. Delayed |
106 |
120 |
-14 |
10.9 |
N/A |
|
General Memory |
107 |
104 |
3 |
15.2 |
>25% |
|
Working Memory |
108 |
96 |
12 |
12.0 |
10-15% |
Differences Between Single Subtest Scaled Scores
and Mean Scaled Score at the .05 Level of Statistical Significance and
Magnitude of Difference Found in 5% of the Standardisation
Sample
|
|
Verbal |
Subtests
|
Performance |
Subtests |
All |
Subtests |
|
Subtest |
p<.05 |
5% |
p<.05 |
5% |
p<.05 |
5% |
|
VO |
2.10 |
3.00 |
|
|
2.30 |
3.38 |
|
SI |
2.77 |
3.29 |
|
|
3.12 |
3.69 |
|
AR |
2.63 |
3.57 |
|
|
2.95 |
3.85 |
|
DS |
2.40 |
4.43 |
|
|
2.67 |
4.62 |
|
IN |
2.34 |
3.29 |
|
|
2.59 |
3.69 |
|
CO |
2.96 |
3.57 |
|
|
3.35 |
3.58 |
|
LNS |
3.16 |
4.29 |
|
|
3.60 |
4.38 |
|
PC |
|
|
3.16 |
3.86 |
3.46 |
4.31 |
|
CD |
|
|
3.04 |
4.29 |
3.31 |
4.46 |
|
BD |
|
|
2.94 |
3.71 |
3.19 |
3.92 |
|
MR |
|
|
2.60 |
3.71 |
2.75 |
3.85 |
|
PA |
|
|
3.75 |
4.14 |
4.19 |
4.46 |
|
SS |
|
|
3.54 |
3.86 |
3.93 |
4.23 |
|
Classification
of Ability Levels |
|||||
|
|
|
|
WAIS
|
%age |
Lower |
|
Classification |
Kramer (1990) |
Z-Score |
Subtest |
included |
limit %ile |
|
Very |
Significantly above
average |
+2.0 and above |
16 to 19 |
2.2 |
98 |
|
|
Above average |
+1.3 to +2.0 |
14 to 15 |
6.7 |
91 |
|
High Average |
High average |
+0.6 to +1.3 |
12 to 13 |
16.1 |
75 |
|
Average |
Average |
-0.6 to +0.6 |
8 to 11 |
50.0 |
25 |
|
Low Average |
Low average |
-1.3 to -0.6 |
6 to 7 |
16.1 |
9 |
|
Borderline |
Below average |
-2.0 to -1.3 |
4 to 5 |
6.7 |
2 |
|
Defective |
Significantly below
average |
-2.0 and below |
1 to 3 |
2.2 |
- |
130 and
above Very
120-129
110-119 High Average
90-109 Average
80-89 Low
Average
70-79 Below Average
69 and below Extremely Low