Prediction of success in a special program often guides program participant selection and treatment. If the statistical analysis used to develop such predictions is based on the special selectivity built into the program, the predictions can be misleading and the validation tests uninformative. Federal district court pretrial release data is used…

Describes three methods of sample size determination, each having its use in investigation of social science problems: Attribute method; Continuous Variable method; Galtung's Cell Size method. Statistical generalization, benefits of cell size method (ease of use, trivariate analysis and trichotyomized variables), and choice of method are…

This review, designed to make analysts aware of uncertainties introduced into analytical measurements during sampling, is organized under these headings: general considerations; theory; standards; and applications related to mineralogy, soils, sediments, metallurgy, atmosphere, water, biology, agriculture and food, medical and clinical areas, oil…

This review on infrared spectrometry covering the period from late 1981 to late 1983, is divided into nine sections. Topic areas include: books; reviews; analytical applications; biochemical applications; environmental applications; polymer applications; infrared instrumentation; sampling techniques; and software and algorithms. (JN)

Article investigated the stability of both the Edwards Personal Preference Schedule (EPPS) (Edwards, 1959) and the Guilford-Zimmerman Temperment Survey (GZTS) (Guilford and Zimmerman, 1949) by presenting new data on the intercorrelations of the scales in these tests. (Author/RK)

This paper describes the design of the interdisciplinary study of the growth and development of Dutch children in progress at the University of Nymegen, The Netherlands. Schaie's design is based on a trifactorial model which isolates the contributions to developmental data of the factors age, cohort and time of measurement. (Author/MS)

This report presents information developed from a workshop on the Inclusion of Language Minority Populations in National Studies (Bethesda, MD, July 17-28, 2000). To help find ways for survey research to capture the increasing linguistic diversity of the United States and thus be truly representative, this report focuses on current barriers to…

Some issues in the design of classroom research on second language teaching are discussed, with the intention of helping the researcher avoid conceptual pitfalls that may cripple the study later in the process. This begins with an examination of concerns in sampling, including definition of a population to be studied, alternative sampling…

This report summarizes tasks undertaken to assess the feasibility of a longitudinal analysis of elementary and secondary schools. The initial objective was to see if it was technically possible to analyze overlap samples of schools from the Schools and Staffing Survey (SASS) to produce substantive findings. Over the course of the project various…

This paper examines some characteristics of the statistics associated with the sampling distribution of the proficiency level estimate when the Rasch model is used. These characteristics allow the judgment of the meaning to be given to the proficiency level estimate obtained in adaptive testing, and as a consequence, they can illustrate the…

This volume is the restricted-use codebook for the 1993-94 Schools and Staffing Survey (SASS) Bureau of Indian Affairs (BIA) schools, teachers and principals. The sample contains 152 schools with samples of teachers and principals for these schools. The first section contains a discussion of the SASS created variables, and the second section…

The objectives of this project were to construct two sets of balanced repeated replication (BRR) weights for two National Education Longitudinal Study of 1988 (NELS:88) sets of weights: one based on the third follow-up survey done in 1994 (NELS88:94); and the second based on the fourth follow-up survey done in 2000 (NELS88:2000). These weights are…

In a study conducted at Langley Research Center of the National Aeronautics and Space Administration, random sampling done by computer rated employees from their co-op program, recruited undergraduate and graduate students, and employees with previous job experience. Co-op students rated higher in performance, advancement, less turnover, and…

This study investigated the validity of the assumption that pass-fail courses correlate with less academic achievement and considered other factors relevant to the basic justification for the pass-fail system. (Author/RK)

An empirical study of statistical overkill investigated the generalizability of multiple regression equations as a function of the subject/variable ratio. Data from various-sized groups of rehabilitation clients were used to develop the equations. Findings showed that equations developed on samples with less than a 10 to 1 ratio failed to…