Children's fuzziness leads to increased variance in the data, data loss, and high dropout rates in developmental studies. This study investigated the importance of 20 factors on the person (child, caregiver, experimenter) and situation (task, method, time, and date) level for the data quality as indicated via the number of valid trials in 11…

Looking times (LTs) are frequently measured in empirical research on infant cognition. We analyzed the statistical distribution of LTs across participants to develop recommendations for their treatment in infancy research. Our analyses focused on a common within-subject experimental design, in which longer looking to novel or unexpected stimuli is…

One literature documents a significant, black-white gap in average test scores, while another finds a substantial narrowing of the gap during the 1980's, and stagnation in convergence after. We use two data sources--the Long Term Trends NAEP and AFQT scores for the universe of applicants to the U.S. military between 1976 and 1991--to show: (1) the…

This third annual report uses nine benchmarks of child and adolescent health, education, and socioeconomic well-being to measure the condition of American children across the nation and state by state. The benchmarks are as follows: (1) percent low birth weight babies; (2) infant mortality rate (per 1,000 live births); (3) child death rate (ages…

A study was conducted to develop baseline information on special education early intervention programs. A review of the literature revealed the following: the effects of a stimulating or depriving environment appear to be most powerful in the early years of childhood; there is evidence that the effects of early intervention programs for children…

Studying normal infant development is a challenge for cognitive scientists in general and for neuroscientists in particular because: (1) physiological indices of infant cognition are generally noisy and technically difficult to obtain; and (2) interindividual variability and a paucity of established results make data interpretation very complex,…

This document presents statistical information on children with special needs, their education, and the professionals who serve them. Graphs, tables, and charts are used to illustrate: (1) the number of children receiving special education services from 1989 to 1999; (2) the incidence of different disabilities; (3) the growth of students in the…

Crying is more common in children with handicaps than in their nonhandicapped age-peers. This paper reviews literature on the prolonged, frequent, or intense crying of handicapped babies; describes environmental considerations; outlines techniques for providing comfort; indicates observational and data-collection strategies; and suggests coping…

This article examines the role of assessment in developing Individual Family Service Plans (IFSP) under Part H of the Education of the Handicapped Act. Emphasis is on determining eligibility, collecting assessment data for describing developmental performance, and establishing desired outcomes. (PB)

This article describes data requirements in Public Law 99-457; discusses issues confronting states as they develop data systems, such as the problems of comprehensiveness, incompatibility, and confidentiality; examines data on numbers of infants and toddlers receiving early intervention services; and explores applications of a national database on…