Table 4.
Correlations Between Principal Component Scores and Scores on Clinical Measures
| I Hoarding/Ritualistic Behavior | II Sensory and Arranging | III Sameness/SIB | IV Stereotypy | V Preoccupation | |
|---|---|---|---|---|---|
| Age | .03 | .05 | –.02 | –.12 | .23 |
| CYBOCS-ASD Total Severitya | .28* | .27* | .04 | .09 | –.07 |
| Time spent | .23* | .25* | –.02 | .13 | –.01 |
| Interference | .18 | .26* | .02 | .10 | –.05 |
| Distress | .31* | .16 | .02 | .06 | –.15 |
| Resistance | .10 | .11 | .05 | –.05 | .02 |
| Control | .18 | .10 | .06 | .03 | .02 |
| CASI | |||||
| Anxiety Scale | .30* | .06 | –.05 | –.06 | .02 |
| PDD scale | .03 | .33* | .01 | .18 | –.01 |
| Vineland Adaptive Behavior Scaleb | |||||
| Communication | .09 | –.26* | .03 | –.31* | –.06 |
| Socialization | –.01 | –.21* | –.07 | –.15 | –.11 |
| Daily Living | .02 | –.21* | –.01 | –.17 | –.10 |
| Aberrant Behavior Checklist | |||||
| Irritability | .21* | .14 | .07 | .20* | –.02 |
| Social Withdrawal | .08 | .21* | .01 | .14 | –.04 |
| Stereotypy | –.05 | .28* | –.16 | .24* | –.01 |
| Hyperactivity | .07 | .07 | –.06 | .04 | –.07 |
| Inappropriate Speech | .17 | .13 | –.04 | –.13 | –.02 |
Note: CASI= Child and Adolescent Symptom Inventory; CYBOCS-ASD= Children's Yale–Brown Obsessive Compulsive Scale for children with autism spectrum disorder; PDD = pervasive developmental disorder; SIB = self-injurious behavior.
a
Spearman, all others Pearson
*
p<.003
b
Higher Vineland scores reflect better adaptive functioning, hence the negative correlations