Table 2.
Psychometric Data Used for Discriminant Analysis.
| Autism Group
|
Control Group
|
|||
|---|---|---|---|---|
| Tests entered into prediction equations [autism, control] | M | SD | M | SD |
| Attention Domain | ||||
| WISC-III Digit Span (scaled score) [55, 55] | 10.05 | 3.09 | 10.73 | 2.84 |
| Continuous Performance Test (mean reaction time correct responses) [32, 35] | 381.34 | 125.53 | 375.55 | 122.13 |
| Number Cancellation (omissions) [39, 34] | 12.92 | 9.62 | 16.21 | 13.44 |
| Sensory perceptual Domain | ||||
| LN1 Simple Touch (raw score) [54, 56] | .41 | .86 | .21 | .56 |
| LN Stereognosis (raw score) [41, 55] | .51 | .90 | .18 | .55 |
| LN Sharp-Dull Discrimination (raw score) [53, 56] | 1.08 | 1.28 | .77 | .99 |
| LN Position Sense (raw score) [54, 56] | .11 | .60 | 0.00 | .00 |
| Reitan-Klove—Finger Agnosia (raw errors) [32, 51] | .75 | 1.19 | .65 | 1.66 |
| Halstead-Reitan: Fingertip Number Writing (errors) [51, 56] | 12.73 | 9.21 | 5.79 | 6.28 |
| Motor Domain | ||||
| Finger Tapping—dominant hand [52, 56] | 39.15 | 10.21 | 43.68 | 7.04 |
| Grooved Pegboard—dominant hand (time in seconds) [56, 56] | 84.96 | 20.23 | 76.93 | 13.63 |
| WISC-III Coding Scaled Score [56, 56] | 8.38 | 3.53 | 10.66 | 2.86 |
| Grip Strength—dominant hand (kilograms) [56, 56] | 16.35 | 7.80 | 22.26 | 7.65 |
| Simple Language Domain | ||||
| WISC-III Vocabulary (scaled score) [56, 56] | 11.14 | 3.18 | 11.27 | 1.96 |
| WRAT Reading (standard score) [54, 55] | 108.07 | 14.57 | 106.84 | 11.02 |
| Verbal Fluency Test—FAS (number of words) [44, 36] | 25.27 | 10.22 | 27.06 | 10.66 |
| Woodcock Reading Mastery—Word Attack (standard score) [52, 40] | 108.23 | 13.97 | 108.45 | 9.11 |
| WRAT Spelling (standard score) [54, 55] | 111.572 | 16.27 | 106.60 | 10.67 |
| Complex Language Domain | ||||
| TLC Figurative Language (scaled score) [47, 40] | 7.38 | 3.16 | 9.93 | 2.64 |
| TLC Making Inferences (scaled score) [45, 41] | 8.44 | 3.06 | 9.59 | 2.97 |
| Woodcock Reading Mastery—Passage Comprehension (standard score) [53, 40] | 101.45 | 11.65 | 105.30 | 7.74 |
| S-B IV Verbal Absurdities (raw score) [56, 56] | 8.25 | 3.85 | 11.95 | 2.67 |
| Detroit Oral Directions (scaled score) [42, 36] | 9.60 | 2.84 | 10.67 | 1.69 |
| Simple Memory Domain | ||||
| 3 Word Short Term Memory (number of correct sequences) [43, 36] | 3.37 | 2.55 | 3.50 | 2.74 |
| Maze Learning Trial 1 Errors [32, 36] | 3.88 | 1.52 | 3.67 | 1.51 |
| WRAML Verbal Learning (scaled score) [55, 55] | 9.96 | 3.52 | 11.62 | 2.65 |
| WRAML Sound Symbol (scaled score) [46, 43] | 11.28 | 3.20 | 10.95 | 2.85 |
| WRAML Visual Learning (scaled score) [46, 43] | 10.98 | 3.09 | 11.16 | 2.52 |
| Complex Memory Domain | ||||
| WRAML Verbal Learning—Delayed (scaled score) [53, 56] | 9.19 | 3.64 | 10.38 | 2.73 |
| WRAML Visual Learning—Delayed (scaled score) [46, 43] | 9.35 | 3.19 | 9.47 | 3.03 |
| WRAML Picture Memory (scaled score) [47, 43] | 8.79 | 3.05 | 10.26 | 2.74 |
| WRAML Design Memory (scaled score) [47, 43] | 8.53 | 3.19 | 10.60 | 2.51 |
| Nonverbal Selective Reminding—Consistent Long-Term Retrieval [28, 31] | 29.25 | 17.49 | 36.68 | 15.78 |
| WRAML Finger Windows (scaled score) [46, 44] | 8.98 | 2.58 | 11.23 | 3.21 |
| Reasoning Domain | ||||
| 20 Questions (% constraint seeking) [55, 56] | 45.27 | 21.49 | 57.54 | 13.58 |
| S-B IV Picture Absurdities (raw score) [43, 37] | 25.00 | 3.38 | 26.30 | 2.80 |
| S-B IV Problem Situation 1 & 2 [54, 56] | 1.98 | 1.12 | 2.68 | .86 |
| S-B IV Plan of Search [45, 56] | .36 | .484 | .66 | .478 |
| Visual-Spatial Domain | ||||
| WISC-III Block Design (scaled score) [56, 56] | 11.75 | 3.62 | 11.27 | 2.92 |
| WISC-III Object Assembly (scaled score) [56, 56] | 10.43 | 3.25 | 10.07 | 1.87 |
| WISC-III Picture Completions (scaled score) [56, 56] | 10.80 | 3.08 | 11.14 | 2.35 |
1
LN = Luria-Nebraska Battery.
2
Autism group had a mean score higher than control group.