This dissertation studies the social structures and dynamics of human networks: how peers at the micro level and physical environments at the macro level interact with the individual preferences and attributes and shape social dynamics. It is composed of three parts. The first essay, "Friendship Choices and Group Effects in Adolescent…

Public flagship universities provide excellence to students who cannot afford high-quality private institutions. Yet many of these universities direct aid to wealthy students who will attend college without it. Meantime, many high-achieving minority and poor students wind up in lesser institutions or do not attend college at all. In fact, some…

The purpose of this paper is to characterize the choice made by retired professional school personnel in Pennsylvania to return to work in public education. This paper builds on earlier studies of the market for teachers and administrators in Pennsylvania. In this paper we describe retiring teachers, administrators and coordinators as…

In 2000, Canada launched the Youth in Transition Survey (YITS) in conjunction with the Organisation for Economic Cooperation and Development (OECD) Programme for International Student Assessment (PISA). Since then, the 30 000 Canadian students that participated in PISA 2000 have been interviewed every two years to collect information about their…

The Texas Educator Excellence Grant (TEEG) program was state-funded and provided annual grants to schools to design and implement performance pay plans during the 2006-07 to 2009-10 school year. This report builds on the previous TEEG evaluation reports, presenting findings from three years of the TEEG program. Overall, the report discusses the…

Estimates a college-attendance equation for a common set of students (from the High School and Beyond Survey) using three popular econometric specifications: the multinomial logit, the ordered probit, and the bivariate probit. Estimated marginal effects do not differ significantly across the three specifications. Choice of specification may not…

Many arguments have been made against allowing examinees to review and change their answers after completing a computer adaptive test (CAT). These arguments include: (1) increased bias; (2) decreased precision; and (3) susceptibility of test-taking strategies. Results of simulations suggest that the strength of these arguments is reduced or…

This examination of data selection preceding multivariate analysis compares results grained with "gentle" and "draconian" variable elimination. To acquire comparable results, two stages of statistical exploration into an integrated model of motivation, learning strategies, and quality of teaching were used. The goal of the…

This study examined the relative efficacy of the Anchorage (Alaska) Pre-Algebra Test and the State of Alaska Benchmark in 2 Math examination as tools used in the process of recommending grade 6 students for grade 7 Pre-Algebra placement. The consequential validity of the tests is explored in the context of class placements and grades earned. The…

Bayesian methods for estimating dose response curves in quantal bioassay are studied. A linearized multi-stage model is assumed for the shape of the curves. A Gibbs sampling approach with data augmentation is employed to compute the Bayes estimates. In addition, estimation of the "relative additional risk" and the "risk specific…

Results are reported from a survey conducted to examine the interdependence of family and work, with special emphasis given to the child care arrangements that make work possible. A total of 953 employees (458 women, 490 men, and 5 not reporting their sex) from three companies in Washington, D.C., were sent a four-page questionnaire designed to…

The Special Studies Series of analytical reports, prepared by demographers in the Population Division, Bureau of the Census, present analyses of statistics and suggest possible implications for public policy. Part of this series, the present report uses data from the June 1982 Current Population Survey and updates a June 1977 Census Bureau study…

A description of the Graduate Management Admission Council's New Matriculants Survey focusing on school selection by Masters of Business Administration students is presented. Four sections are as follows: (1) reasons for applying and enrolling (including student differences in reasons for applying); (2) who applies to more than one school (e.g.,…

The relationship between attrition and choice of major was studied at Western Illinois University. A secondary purpose was to determine whether measures of accademic ability, as well as curricular choice, will provide a basis for determining if attrition is likely to occur. Entering freshmen in the summer and fall terms of 1974, 1975, and 1976…