xviii, 147 p. A print copy of this title is available from the UO Libraries, under the call number: KNIGHT LB1131 .P64 2008 / Identifying children with developmental delays or disabilities as early as possible is a growing concern and has increased focus on the development of valid, reliable screening tools. The previous editions of the Ages and Stages Questionnaires (ASQ) have been investigated and found to be valid and reliable for screening children at risk for delay and in need of further evaluation. This study examined the psychometric properties of a newly revised third edition, including the utility of the addition of a "monitor" scoring category with preschool age children. Participants included 59 child/parent dyads ages 45-65 months with either no known risk factors ( n = 39) or one or more risk factors ( n = 20). Results from data analyses evaluating the psychometric properties were promising. Validity was investigated by examining concurrent validity using the Battelle Developmental Inventory, 2 nd Edition (BDI-2). Classifications (i.e., "typically developing" or "identified") of child's performance based on the domain scores of the ASQ were compared to the classifications of the child's performance based on total developmental quotient scores of the BDI-2. Percentage of agreement between classifications (91%) was computed. Based on BDI-2 and ASQ agreement, specificity was 91%, sensitivity 100%, and positive predictive value 20%. Reliability was examined with test-retest, inter-observer, and internal consistency. Intraclass correlations (ICC) and percent agreement were used to calculate test-retest and inter-observer reliability. ICC for test-retest ranged from .29 to a .88 when comparing individual domain scores from time one to time two. Percent agreement was calculated by comparing classifications at time one to classifications at time two, with 96% agreement. ICC for inter-observer reliability ranged from .22 to 1.00, with a percent agreement of 100%. Internal consistency means were calculated at: communication .66, gross motor.70, fine motor.52, problem solving .35, and personal-social .61. Results from the analyses addressing the utility of a "monitor" scoring category and using learning activities suggested that (a) parents and teachers found the activities easy to understand and use, and (b) the learning activities would be effective with a child scoring in this category. / Adviser: Jane K. Squires

The Chinese government has announced the 2013 Guidelines for developing a national system for early detection of disability among children under 6 years of age. However, given limited resources, challenges exist with developmental measures required in the 2013 Guidelines. In order to meet the needs for a more accurate and cost-efficient measure for developmental assessment, the Ages & Stages Questionnaires:INVENTORY was translated into Simplified Chinese, and validated on a regional sample of 812 Chinese children ages from 1-25 months. Psychometric properties were examined; data from previous studies on the ASQ:INVENTORY in the U.S. were compared to identify differences between the two countries. Results indicated that the Chinese ASQ:INVENTORY was an instrument with sufficient internal consistency, reliability and validity. It was well accepted by parents and professionals in China. Findings suggested that the Chinese ASQ:INVENTORY provides a promising alternative measure for screening and diagnosing developmental delays in young children in China. Implications for future research and implementation are discussed.