The infant motor screen.

The authors describe the Infant Motor Screen, which is a brief evaluation of the quality of motor patterns of preterm infants from four to 16 months of age. It was developed for use with an assessment of motor milestones as part of a developmental screening program for high-risk infants. 111 infants were tested at four months and 58 at eight months. The predictive validity for cerebral palsy was high: sensitivity and specificity, respectively, were 0.93 and 0.89 at four months and 1.00 and 0.96 at eight months. Inter-observer agreement was between 0.82 and 0.87 for item scoring and between 0.93 and 1.00 for test rating.