Research Article

Autism, Processing Speed, and Adaptive Functioning in Preschool Children

Table 2

Pearson correlations between WPPSI-III index scores and Vineland Adaptive Behavior Scales Domains.

WPPSI-IIIVineland Adaptive Behavior Scales Domains
VIQPIQPSQFSIQGLCCommunicationDLSSocializationMotoricComposite

VIQ1,529**,373**,869**,810**,538**,223*,227*,312**,376**
PIQ1,475**,854**,435**,409**,322**,237*,359**,389**
PSQ1,585**,278*,422**,377**,206,414**,438**
FSIQ1,713**,557**,322**,251**,403**,451**
GLC1,462**,210*,231*,381**,366**
Communication1,832**,769**,751**,921**
DLS1,822**,802**,939**
Socialization1,712**,900**
Motoric1,890**

Correlation is significant at the 0.01 level (2-tailed).
*Correlation is significant at the 0.05 level (2-tailed).
VIQ: Verbal IQ.
PIQ: Performance IQ.
PSQ: Processing Speed Quotient.
FSIQ: Full Scale IQ.
GLC: Global Language Composite.
DLS: Daily Living Skills.