Independent mobility in early childhood has been associated with the develo
pment of various cognitive and psychosocial skills. However, children with
physical disabilities are not always able to move independently and may be
at risk for delays in these areas. Early provision of powered mobility can
offer young children an opportunity for independent mobility. Despite this,
there is little information to help determine when a young child has the c
ognitive skills necessary to operate a powered wheelchair safely. This curr
ent research aims to identify these skills. A cognitive assessment battery
and a wheelchair mobility training and assessment program were developed. T
wenty-six children with physical disabilities between the ages of 20 and 36
months were evaluated on the cognitive assessment and participated in the
wheelchair training and assessment program. A stepwise regression analysis
was used to determine which of the cognitive skills predicted wheelchair mo
bility performance. The cognitive domains of spatial relations and problem
solving were found to be significant and accounted for 57% of the variance
in wheelchair skills. Developmental cut-off points on these scales as they
relate to wheelchair skills are presented and clinical applications are dis
cussed.