The long-term objective of this project is a better understanding of infant and toddler motor development. Specific aims include the development and validation of new strategies for analyzing motor behavior with emphasis on quality of movement. Quality of movement will be operationalized as:(1) variations within a position,(2) transitions within a position,(3) complex combinations of single motor events, and(4) the number of abnormal movement patternsThe sample will be 390 normal and 9o highrisk children. Analyses will focus on determining normative motor patterns, developmental age trends, high-risk/normal group differences, and reliability. The proposed observation system evaluates movement in the context of spontaneous, naturally occurring play. Motor assessments that involve direct handling of the child have consistently been found to be unreliable. The new approach minimizes the uncontrolled-for effects of examiner-examinee interactions because little handling is required. The responsible implementation of Public Law 99-457 demands reliable and valid observational techniques for use with infants and toddlers. The proposed research is theoretically and clinically meaningful and likely to be of value in evaluating motor development and predicting riskAwardee's statement of the potential commercial applications of the research:Most of the estimated 8 million U S. infants and toddlers participate in some form of developmental assessment through routine screenings. An increase in assessment activity is expected with the implementation of Public Law 99-457, which mandates early intervention More reliable and valid observational techniques are likely to emerge from this research, which may prove to be of practical value in both public and private efforts to identify high-risk childrenNational Institute of Child Health and Human Development (NICHD)
