BACKGROUND AND PURPOSE: The purpose of this study was to assess the construct validity of the Test of Infant Motor Performance (TIMP), specifically the test's sensitivity for assessing age-related changes in motor skill and correlation with risk for developmental abnormality. SUBJECTS: Subjects were 137 term and preterm infants stratified by postconceptional age, medical complications score on the Problem-Oriented Perinatal Risk Assessment System, and ethnicity and race (non-Latino Caucasian, African-American, and Latino). METHODS: Subjects were tested on the TIMP at ages ranging from 32 weeks postconceptional age to 3.5 months past term-equivalent age. Scores (Rasch logit ability measures) were correlated with postconceptional age. A multiple regression analysis was used to assess the contributions of age, risk, and ethnicity to the variance in TIMP scores. RESULTS: The correlation between postconceptional age and TIMP performance measures was .83. Risk and age together explained 72% of the variance in TIMP performance (R = .85, P < .00001). No differences related to ethnicity were found. CONCLUSION AND DISCUSSION: The TIMP has validity for assessing age-related development of functional motor skills in young infants and is sensitive to risk for poor developmental outcome.
BACKGROUND AND PURPOSE: The purpose of this study was to assess the construct validity of the Test of Infant Motor Performance (TIMP), specifically the test's sensitivity for assessing age-related changes in motor skill and correlation with risk for developmental abnormality. SUBJECTS: Subjects were 137 term and preterm infants stratified by postconceptional age, medical complications score on the Problem-Oriented Perinatal Risk Assessment System, and ethnicity and race (non-Latino Caucasian, African-American, and Latino). METHODS: Subjects were tested on the TIMP at ages ranging from 32 weeks postconceptional age to 3.5 months past term-equivalent age. Scores (Rasch logit ability measures) were correlated with postconceptional age. A multiple regression analysis was used to assess the contributions of age, risk, and ethnicity to the variance in TIMP scores. RESULTS: The correlation between postconceptional age and TIMP performance measures was .83. Risk and age together explained 72% of the variance in TIMP performance (R = .85, P < .00001). No differences related to ethnicity were found. CONCLUSION AND DISCUSSION: The TIMP has validity for assessing age-related development of functional motor skills in young infants and is sensitive to risk for poor developmental outcome.
Authors: Kristin J Krosschell; Jo Anne Maczulski; Charles Scott; Wendy King; Jill T Hartman; Laura E Case; Donata Viazzo-Trussell; Janine Wood; Carolyn A Roman; Eva Hecker; Marianne Meffert; Maude Léveillé; Krista Kienitz; Kathryn J Swoboda Journal: Pediatr Phys Ther Date: 2013 Impact factor: 3.049
Authors: Joanne M George; Roslyn N Boyd; Paul B Colditz; Stephen E Rose; Kerstin Pannek; Jurgen Fripp; Barbara E Lingwood; Melissa M Lai; Annice H T Kong; Robert S Ware; Alan Coulthard; Christine M Finn; Sasaka E Bandaranayake Journal: BMC Pediatr Date: 2015-09-16 Impact factor: 2.125