This study examined whether infants with Down syndrome (N=32) undergoing early motor training would benefit from their parents observing a clinician implement an intervention program with their child. Parents of half the children remained in the room while the clinician implemented motor stimulation techniques, while parents of the other half were given detailed explicit instructions on carrying out the training objectives at home. Results of infant motor evaluations at ages 6, 12, 18, and 24 months found significant differences in favor of those whose parents underwent training by modelling rather than by direct instruction. A secondary finding was that subjects who began motor training earlier attained higher motor developmental quotients. (DB)