The Programme for International Assessment of Adult Competencies (PIAAC) will establish technical standards and guidelines to ensure that the survey design and implementation processes of PIAAC yield high-quality and internationally comparable data. This document provides a revised version of the technical standards and guidelines originally…

Provides an introduction to qualitative research methods. Describes principles of qualitative research and discusses appropriateness of qualitative methods for student affairs research. Explains qualitative methods, including design, data collection and analysis, and reporting of results. Identifies and addresses problems of trustworthiness of…

Introduces statistical methods for evaluating differences in patterns of time to response between two subject groups to determine better therapy. Uses data from hypothetical clinical trial to illustrate two elementary methods for analyzing survival data. Discusses generalization of methods to incorporate covariates. Concludes with general…

Presents case consultation in which consultants respond to issues of urban planning for mass transit (subway) system and how to maximize prevention of intentional injury within subway stations. Also asks what type of research study should be used and what type of data collected once system is operating. Case is discussed by Morton M. Silverman and…

Notes that conventional statistical models are not suited for analysis of nonindependent observations produced by family systems. Demonstrates how structural equation modeling enables the study of family processes in a way that is consistent with a systems perspective. Uses analysis of perceived coerciveness in two-parent, two-child families to…

Develops basic concepts of generalizability theory using hypothetical study of reliability of scores of vocational interest inventory. Asserts that generalizability theory makes it possible to consider all possible sources of unreliability simultaneously and to design optimal decision-making study. (NB)

Reviews concepts of aptitude and aptitude-treatment interaction (ATI) and summarizes lessons learned in ATI research on educational treatments to help ATI research on psychotherapeutic treatments. Research design and data analysis recommendations address aptitude distributions, multivariate aptitude complexes, detective work with scatterplots,…

Defines structural equation modeling as comprehensive, flexible approach to research design and data analysis. Provides conceptual overview of clinical research hypotheses that invite evaluation as structural equation models. Particular attention is devoted to hypotheses that are not adequately evaluated using traditional statistical models.…

Notes that single-case designs rarely appear in the counseling supervision literature. Illustrates and provides a rationale for their use as supplement to rating scales and speculates on reasons for their infrequent use. Contends that single-case designs, particularly three case study preexperimental designs and multiple-baseline experimental…

Explains multiple regression, demonstrates its flexibility for analyzing data from various designs, and discusses interpretation of results from multiple regression analysis. Presents regression equations for single independent variable and for two or more independent variables, followed by a discussion of coefficients related to these. Compares…

Presents conceptual framework for organization of factors (independent variables) affecting online bibliographic retrieval. Roles that variables play in research studies are described and examples considering various elements--setting, user, request, database, search system, searcher, search process, search outcome--are provided. Twenty-one…

Discusses research strategy and data collection methods in field studies of unapprehended illegal immigrants living in the United States and suggests ways to increase the reliability and validity of interview responses. Also provides a bibliography of recent field studies of undocumented immigrants. (Author/GC)

The purpose of scientifically-based research within No Child Left Behind (NCLB) is to identify and disseminate conclusive information on ?what works? in education, with an emphasis on determining what instructional input (curricula, instructional techniques) works to increase student outcomes such as academic achievement and language proficiency.…

Statewide assessment data available from two school years, two grade levels, and five sources (achievement tests; student, principal, and teacher questionnaires; and principal interviews), were aggregated to more closely investigate the relationship between student/school characteristics and student achievement. To organize this large number of…

Procedures are described to conduct summative evaluations of Talents Unlimited programs. It is assumed that school counselors, administrators, or personnel minimally trained in measurement and statistics are capable of conducting the evaluation, except for doing the statistical analysis. The procedures are composed of: establishing measurable…