Free
Research Article  |   July 2005
Comparison of Test of Infant Motor Performance (TIMP) Item Responses Among Children With Cerebral Palsy, Developmental Delay, and Typical Development
Author Affiliations
  • Vanessa Maziero Barbosa, PhD, OTR/L, is Clinical Research Coordinator at Pathways Center for Children with Disability, 1335 S. Prairie Street, #2007, Chicago, Illinois 60605; vanessambarbosa@yahoo.com. At the time of the study, Dr. Barbosa was Assistant Professor, Department of Occupational Therapy, Federal University of Minas Gerais, Belo Horizonte, Brazil
  • Suzann K. Campbell, PT, PhD, FAPTA, is Professor and Head, Department of Physical Therapy, University of Illinois at Chicago, Chicago, Illinois
  • Everett Smith, PhD, is Assistant Professor, Educational Psychology Department, University of Illinois at Chicago, Chicago, Illinois
  • Michael Berbaum, PhD, is Senior Statistician, Health Research and Policy Center, University of Illinois at Chicago, Chicago, Illinois
Article Information
Neurologic Conditions / Pediatric Evaluation and Intervention / Occupational Patterns and Skills of Children
Research Article   |   July 2005
Comparison of Test of Infant Motor Performance (TIMP) Item Responses Among Children With Cerebral Palsy, Developmental Delay, and Typical Development
American Journal of Occupational Therapy, July/August 2005, Vol. 59, 446-456. doi:10.5014/ajot.59.4.446
American Journal of Occupational Therapy, July/August 2005, Vol. 59, 446-456. doi:10.5014/ajot.59.4.446
Abstract

Impairment of children’s motor performance might limit participation in family and community life. Therefore, identification of motor impairments is important in support of early intervention to prevent limitations in children’s occupational performance. The purpose of this paper is to examine item performance on the Test of Infant Motor Performance (TIMP) in a group of infants later diagnosed as having cerebral palsy (CP), developmental delay, or typical development. Particularly, we aimed to determine if specific TIMP items have a strong relationship at particular ages with the presence of a later diagnosis of CP. Exploratory graphic representation and Rasch differential item analysis were employed to investigate each individual TIMP item’s behavior in discriminating among children with different outcomes. Items discriminating among the three outcome groups included: hand to mouth, neck control, rolling, and pull to sit items, particularly at ages term, 9 weeks, and 12–13 weeks corrected age. Children with CP presented “advanced” performance in items using extension patterns and slow development or regression in items requiring antigravity and balanced used of flexion-extension patterns of muscle activity.