The Michigan Oral Language program was installed in the Santa Paula School District for a 2-month tryout and student performance before and after the program was assessed through multiple matrix sampling. Student performance over seven content areas was determined for both the English and Spanish language components. In all seven content areas,…

The mathematical derivation of the statistics used for inference in some linear models assumes that the values of the independent variables are measured without error. This assumption is often disregarded when these models are utilized in research. This study is an investigation of the consequences of the violation of this assumption for one…

When norming tests, it may be preferable to use the matrix sampling technique. The results from the samples may be used to estimate what the distribution of scores would have been if each subject had taken all the items. This paper compares four methods for making these estimates. The sample size made it possible to compare the techniques in a…

This report contains an interpretive analysis of individual test items used in the 1973 Wisconsin State Mathematics Assessment at grades 3 and 7. The sampling procedures, organization, interpretation of data, limitations, and useful definitions of the test, and test results are discussed. The analysis includes an evaluation of each test item and…

The reading assessment undertaken by the Department of Public Instruction in May 1973 was a pilot study. As such its primary purpose was to provide information for future assessment instruments, administration procedures, sampling procedures, and data analysis alternatives. Thus, this document contains a critical examination of the pilot…

Four different observational systems and two time sequences were employed to determine the extent to which they would yield different incidences of anti-social behavior. Two videotapes, randomly chosen from a pool of 30 tapes, were utilized. These illustrated the behaviors of anti-social children in a natural setting. Six observers were reliably…

This paper is concerned with the study of similarities and differences in factor structures between different groups. A common situation is when a battery of tests has been administered to samples of examinees from several populations. A very general model is presented, in which any parameter in the factor analysis models (factor loadings, factor…

Besides the ubiquitous Pearson product-moment r, there are a number of other measures of relationship that are attenuated by errors of measurement and for which the relationship between true measures can be estimated. Among these are the correlation ratio (eta squared), Kelley's unbiased correlation ratio (epsilon squared), Hays' omega squared,…

Procedures for implementing the Pennsylvania Plan (see TM 000 608) are detailed, and the method of achieving representative sampling is described. Functions of school representatives involved in the data collection are listed, and their training is outlined. Procedures for collecting school and teacher information, and administering tests and…

This speech discusses performance contracting as educational research, notes some evaluation problems, and proposes solutions to these problems. The term performance contracting, according to the report, denotes an administrative rather than an instructional innovation. The author observes that the understanding of instruction and learning derived…

The National Food and Agriculture Council of the Philippines regularly requires rapid feedback data for analysis, which will assist in monitoring programs to improve and increase the production of selected crops by small scale farmers. Since many other development programs in various subject matter areas also require similar statistical…

The specific objective of the research described in this report was to develop guidelines for decisionmaking by the Office of Manpower Utilization (OMU), Marine Corps Headquarters, in the selection of occupational field (OF) sample sizes to which task inventories will be administered. The report is designed to provide action-oriented answers to…

Aesthetic awareness of American and Japanese children grades one, four, seven, and ten was measured by indicated preference of one of two simultaneously projected color slides. (Author)

Statements made in a previous article of this journal concerning the Rasch latent trait test model are questioned. Methods of estimation, necessary sample sizes, several formuli, and the general usefulness of the Rasch model are discussed. (JKS)

Data gathered from three Papua New Guinea samples on a range of tasks derived from the theoretical positions of Piaget and Bruner were analyzed at the level of individual language/culture groups. (Editor)