In this paper, tables for the appropriate sample sizes are presented and discussed in the context that the determination of the effect size must precede the determination of the sample size. (Author/PN)

In educational effectiveness research, multilevel models are increasingly used because these models take the multilevel structure of the data into account. In this paper, the effect of ignoring one or more levels of variation in hierarchical linear regression is explored, using a model with four hierarchical levels (individual pupil, class group,…

As an extension of B. Thompson's 1998 invited address to the American Educational Research Association, this paper cites two additional common faux pas in research methodology and explores some research issues for the future. These two errors in methodology are the use of univariate analyses in the presence of multiple outcome variables (with the…

The Schools and Staffing Survey (SASS) is an integrated set of surveys that has been conducted by the U.S. Census Bureau for the National Center for Education Statistics (NCES) in 1987-88, 1990-91, and 1993-94. In each of those school years, the Census Bureau also conducted a reinterview of the administrators, schools, and teachers. This report…

This document contains two papers related to the 1993-94 Schools and Staffing Survey (SASS). The first paper documents some of the problems that were encountered during student sample selection and the methods used to resolve those problems. It also provides some suggestions to alleviate some of the problems in future SASS studies. Significant…

In 1987 the U.S. Census Bureau created a universe of private elementary and secondary schools for the National Center for Education Statistics (NCES). This universe has been updated every 2 years through list frame updating and area frame updating. For the list frame updating, lists of private schools are obtained from various associations around…

During round 16 of the National Longitudinal Survey of Youth (NLSY), 900 NLSY sample members were randomly assigned to be interviewed about the period since their round 14 interview. Their responses were compared to those of approximately 8,000 NLSY sample members who were assigned to be interviewed about the 1-year period since their round 15…

This study of early childhood and the family in member countries of the Organisation for Economic Co-Operation and Development (OECD) employs two statistical approaches to the problem of providing an accurate picture of modern conditions of family life. A classical demographic approach to population studies is initially used, then is critiqued,…

The Migrant Student Record Transfer System (MSRTS) is a nationwide computer-based communications network originally designed to transfer the health and educational records of migrant workers' children. This report assesses MSRTS data from September 1984 through June 1986 to determine the potential utility of such data for national studies of the…

In 1976, a study determined that student retention had increased markedly following Barstow College's transition from a semester to a quarter system. In 1979, another study was conducted to determine: (1) the accuracy of the 1976 figures; (2) the effect of the shortness of the time period considered in the 1976 study on its reliability; (3) the…

To determine what resources are available to community health nurses, a survey was conducted of 345 agencies in WICHE's 13 western state region (Alaska, Arizona, California, Colorado, Hawaii, Idaho, Montana, New Mexico, Nevada, Oregon, Utah, Washington, and Wyoming). Major findings were: (1) only two percent of responding agencies had a full-time…

The Contra Costa Community College District (CCCCD), in California, conducted a study to determine the type and number of transfer students served by both the CCCCD and by the University of California (UC), the California State University (CSU), or St. Mary's College (SMC) between 1982-83 and 1989-90. The study also assessed the completeness and…