Explores whether flexible nonlinear models (including neural networks and genetic algorithms) can reveal otherwise unexpected patterns of relationship in typical school-productivity data. Applying three types of algorithms alongside regression modeling to school-level data in 183 elementary schools proves the hypothesis and reveals new directions…

The purpose of this paper is to carefully examine the evolution of students' theory building and modeling, critical components of scientific epistemologies, over a unit of study on sinking and floating in one third/fourth grade classroom. The study described in this paper follows in the tradition of Design Experiments (Brown 1992, Collins 1990)…

When learning is taking place, students test their hypotheses and evaluate them, and modify their current theories on the basis of new information. This phenomenon is known as "hypothesis testing view" or "theory changes." Many students change their rules to another while they are taking a test. This study introduced a new…

Recent developments in dichotomous factor analysis based on multidimensional item response models (Bock and Aitkin, 1981; Muthen, 1978) provide an effective method for exploring the dimensionality of questionnaire items. Implemented in the TESTFACT program, this "full information" item factor analysis accounts not only for the pairwise…

Some of the variations in reading achievement and fluency levels among bilingual students enrolled in the Seattle Public Schools are explained, and an examination of the effects of special language services (English as a second language and bilingual subject matter instruction) is emphasized. A model is presented which examines the relationships…

Analyzes the wage effects of different types of education in The Netherlands, using a generalized version of the dummy endogenous variable model and distinguishing among seven types of education: general, agricultural, technical, medical, teacher, economic/administrative, and other education. Findings show that technical education yields lower…

Guiding principles for using sliding fee scales are presented in this paper in an effort to help states plan new child care initiatives, coordinate or strengthen existing programs, and improve sliding fee scales for current programs. Introductory comments urge states to adopt a single sliding fee scale for all their child care programs. The report…

This study seeks to acquire understandings about the dynamics of curriculum change in one urban elementary school and to depict these understandings in a form which facilitates clarifying their behavioral implications. The focus of the study was the changing level of the use of the Developing Mathematical Processes (DNP) program. It was introduced…

Using the production-function approach and data from Baltimore (Maryland) public elementary schools, a study shows that school size minimally affects student performance on standardized achievement tests. Regression analysis shows the importance of students' socioeconomic status and negative effects of school input measures such as teacher/pupil…

This volume contains tables of item analysis results obtained by following procedures associated with the Rasch Model for those reading tests used in the Anchor Test Study. Appendix I gives the test names and their corresponding analysis code numbers. Section I (Basic Item Analyses) presents data for the item analysis of each test in a two part…

How students are affected by a mentoring relationship and to what degree were studied over 3 years in the evaluation of a mentoring program that aims to improve student motivation, achievement, and behavior. In addition to a survey of 85 mentors and 89 teachers, the study examined some objective measures of student achievement for 40 elementary…

This study was conducted to evaluate the tests developed by elementary foreign language teachers of French, Japanese, and Spanish in a school district in South Carolina. The tests were designed to determine the level of end-of-year student learning and to provide a basis for evaluating the curriculum of each of the three languages. The French and…

A survey of 258 North Carolina families with children (ages 3 to 12) having emotional disturbances focused on: (1) the wide range of characteristics of the child, family, and community; (2) characteristics that families bring to their situation as well as characteristics that can be changed by experience and the use of resources and services; and…