In summary, the Test of Infant Motor Performance has evidence supporting its use for early diagnosis of delayed gross motor development and for documenting the performance of infants under five months of age for use in clinical trials and in clinic and community-based practice settings. Although limitations of the test include a short age span and the time required for assessment, especially for those with physiologic or behavioral fragility, the TIMP’s strong correlations with developmental assessments at later ages make it a good tool for use in longitudinal studies of developmental outcomes.
