Part C of the Individuals with Disabilities Education Act (IDEA) is intended to help ensure that all eligible infants and toddlers with disabilities (aged birth-2) and their families receive early intervention services. This chart shows the federal appropriations allocated for the Part C program, the number of children served, and the federal…

Because of their efficiency and ability to keep many other factors constant, twin studies have a special appeal for investigators. Just as with any teaching dataset, a "matched-sets" dataset used to illustrate a statistical model should be compelling, still relevant, and valid. Indeed, such a "model dataset" should meet the…

The "29th Annual Report to Congress on the Implementation of the Individuals with Disabilities Education Act, 2007" follows the 2006--i.e., the 28th annual report--in sequence. The "29th Annual Report to Congress" is, however, the first to have three volumes. In the 28th and previous editions, volume 2 consisted of data tables…

Statistics are presented on infant mortality rates according to race, sex, family income, education of mother, and education of father. The statistics are based on data collected by a questionnaire mailed to mothers of legitimate births and to medical care facilities and mothers of legitimate infant deaths. Samples were selected from records of…

This paper describes the collecting of normative data concerning the development of East Indian babies and analyzes the information in terms of: (1) the influences of socioeconomic class; (2) urban-rural environmental differences; (3) sex differences; and (4) comparisons with children from the United States, Israel, and the United Kingdom. The…

This study reports various aspects of the analyses carried out on the longitudinal data reported in a previous study (PS 007 345) for determining the general growth patterns and growth velocity of mental and motor development. Preliminary analyses focused on the selection of the growth curve, its evaluation in the 208 individual cases, and the…

This paper presents some findings of a detailed analysis of infants' approach behavior in a familiar, naturalistic setting. A total of 26, white, middle-class infant-mother pairs were observed in the home every three weeks during the first year of the child's life. Instances of infant approach to both mother and observer were coded from the…

Results of an examination of recognition memory in typically-developing 6- and 9-month-old infants using the Visual Paired-Comparison task show that infants of both ages display a novelty preference when the delay interval is 10 seconds or 5 minutes. After 1 month, younger infants performed at chance levels and older ones looked longer at the…

The two studies reported here sought to discover to what degree tracking activities are supported by the displacement of an object relative to a background in contrast to displacement of the whole field. (Author/RK)