The failure of educational research to fully allow for limitations in methodology when drawing conclusions is faulted. In addition to this, a failure on the part of the media--educational and other--to fully publicize these limitations is also criticized. Methodological shortcomings of the 1977-78 American Institutes of Research (AIR) study of…

The implications of a mathematical model of test scores are explored where the data are limited to a random sample of items without replacement from an indefinitely large population or item domain in which items are scored either zero or one. The purpose is to obtain an unbiased estimate of a student's proportion of items correct in the item…

It appears that relatively little thought has been given to the methods for reviewing, synthesizing, and reporting the results of a set of empirical studies on a given substantive topic. The question is raised as to whether the studies that have been reviewed constitute a population or a sample, and if a sample, whether they are representative or…

The Reading Is Fundamental (RIF) program is designed to give disadvantaged children incentive to read by letting them choose books from a wide variety of paperbacks and keep them as their own. This document reports on the evaluation procedures and results for the Dallas RIF Project in 1973-1974. Following a description of the project and its…

Selected data from the Commission on Human Resources data base are reported for two major groups that have been underrepresented in doctoral education in the past: minorities and women. A wide selection of tabulations of data on doctorate holders by sex and racial/ethnic group membership is presented. Characteristics of minority and women Ph.D.…

Ohio's Statewide Needs Assessment is designed to provide baseline data about students' learning in cognitive areas. Over several years, students at various grade levels will be assessed. The areas to be assessed, as well as the grades of the students to be assessed, will be considered and advised upon by the ESEA Title III State Advisory Council.…

The purposes of the assessment project were to determine when the fourth grade math skills were acquired by the majority of students in the Salem, Oregon public schools, and to compare accomplishment on the criterion-referenced test with accomplishment on a standardized test. Because the project required testing grades 3-6, multiple matrix…

This survey analyzes the descriptions of research samples provided in 1,353 research articles relating to children. The 1974 volumes of 24 research journals were examined, and all articles in these volumes were included in the survey if they met two criteria: (1) having a research sample, and (2) dealing with children and youth between the…

The principal uses of statistics in library planning may be illustrated by examples from the state of Illinois. State law specifies that the Illinois State Library compile and publish statistics on libraries. State agencies also play an important and expanding role in this effort. The state library now compiles statistics on all types of…

This report describes the comprehensive evaluation study of the California State Preschool Program which involved elementary school children in educationally disadvantaged areas throughout California. Various test scores of approximately 6000 children in kindergarten, first, and second grade who had previously participated for at least a year in…

This study was undertaken to identify farmer incentives that led them to adopt wheat crop practices in Aligarh Intensive Agricultural District Program: the association between the farmer's characteristics and adoption groups; the incentives that lead the farmers to adopt recommended wheat crop practices; relationship between identified incentives…

The experience of a research group in studying Neighborhood Youth Corps (NYC) programs provides the framework for a discussion of the methodological difficulties of conducting research on disadvantaged groups. However, the report does not deal with the programs and operations of NYC itself. Four problem areas are described: (1) criterion, program,…

The job performance of area-specialists and county agents in Kentucky and Indiana Cooperative Extension Services was measured; and relationships between their job performance and personal and organizational variables were identified. Data were collected by 350 self-reported work samplings per respondent during one work cycle in the Spring of 1966,…

A tailored testing model employing the beta distribution, whose mean equals the difficulty of an item and whose variance is approximately equal to the sampling variance of the item difficulty, and employing conditional item difficulties, is proposed. The model provides a procedure by which a minimum number of items of a test, consisting of a set…

This text was developed on an autoinstructional basis to familiarize the reader with the various interpretations of reliability and validity, their measurement and evaluation, and factors influencing their measurement. The text enables those with prior knowledge of statistics to increase their understanding of variance and correlation. Review…