Professionals across disciplines who assess and teach students with language problems should develop their own standards for best professional practices to improve the diagnostic and treatment (instructional) services in schools and nonschool settings rather than assessing only for eligibility for categories of special education services according…

This article reports the results of a study in which the basic regression-discontinuity approach to assess the effect of 1 year of schooling is extended. The data analysis covers the 6 grades of secondary education in Cyprus and thus assesses the contribution of secondary education to the cognitive development of 12- to 18-year-old students. A…

Past estimates of the effect of family income on child development have often been plagued by endogeneity and measurement error. In this paper, we use two simulated instrumental variables strategies to estimate the causal effect of income on children's math and reading achievement. Our identification derives from the large, non-linear changes…

The reliability and validity properties of the Brigance K&1 screen were examined with a sample of 134 Head Start children preparing to enter kindergarten. Prediction/outcome analyses, intended to explore the test's accuracy in predicting special-education status at the end of preschool, indicated a relatively high false negative rate and a…

While father absence due to divorce, desertion, or separation had the most negative influence in the initial 2 years of the child's life for boys and girls, father absence due to death was the most detrimental when it occurred in the 6 - 9 period of the boy's life. (Author)

Several studies of the validity of the intensive time-series design have revealed a post-intervention increase in the level of achievement data (the "momentum effect"). Reports on the development and use of a technique to study the effect as it is observed in several data sets on the learning of plate tectonics. (Author/JN)

This handbook is a guide and reference document for those researching the child data files of the 1986-1990 National Longitudinal Survey of Youth, sponsored by the Bureau of Labor Statistics. It describes the child data collection procedures, the nature of the child sample, the child data files available, and the specifics of the child assessments…

This report focuses on three main questions: (1) To what extent does a Head Start experience accelerate the rate at which disadvantaged preschoolers acquire cognitive skills? (2) Are the Planned Variation models, simply by virtue of sponsorship more effective than ordinary nonsponsored Head Start programs? and (3) Are some Planned Variation models…

Fifth and sixth grade students from the State College Area School District (Pennsylvania) participated in a 5-day resident outdoor education program to investigate the effectiveness of such a program on the development of cognitive learning processes. Students were divided into experimental and control groups of one fifth and one sixth grade class…

Measuring cognitive achievement gains in project evaluation is dealt with. This guide provides those concerned with project evaluation with the basic tools for conducting technically sound, interpretable evaluation studies. Exotic designs are avoided and five basic models which appear feasible to implement in real-world settings are focused on.…