The general linear model was described, and the influence that measurement errors have on model parameters was discussed. In particular, the assumptions of classical true-score theory were used to develop algebraic relationships between the squared multiple correlations coefficient and the regression coefficients in the infallible and fallible…

The use of a three-parameter logistic model for applying latent trait theory has become more popular because of the availability of computer programs. The program Logist 5 can be used not only for the item parameter estimation in the three-parameter logistic model, but also in the two parameter logistic model by setting the third parameter equal…

Grades awarded to secondary school students in the Cleveland (Ohio) public schools were analyzed to determine relationships between grades and selected school climate variables in a desegregated urban school district. Failures or F grades and schoolwide non-promotion rates were both related to rates of class attendance and school suspensions. Over…

In order to explain the derivation and implications of the Association of Research Libraries (ARL) Library Index (a descriptive statistical indicator of research library quality which is based on an analysis of certain key library characteristics), this paper discusses regression and correlation as methods for measuring relations between such…

Each of the three studies in this report examines a different aspect of the basic question of what the four item types (analogies, antonyms, reading comprehension, and sentence completion) on the Scholastic Aptitude Test (SAT) verbal section are measuring and of whether a change in the relative emphasis on the various item types would enhance the…

This study attempts to determine whether there exists a negative interconnection between the creative and testable nature-of-science (NOS) conceptions in college students' conceptual ecology by investigating, through a pair of IHV-assisted teaching experiments, the effect of raising the status of each NOS conception in students' conceptual ecology…

Web-based education is a popular format for the delivery of college courses. Research has shown that it may not be the best form of education for all students. Today, many students (and student advisors) face a choice in course delivery format (i.e., Web-based or more traditional classroom courses). This research study examines the relationship…

Emily Beller and Michael Hout examine trends in U.S. social mobility, especially as it relates to the degree to which a person's income or occupation depends on his or her parents' background and to the independent contribution of economic growth. They also compare U.S. social mobility with that in other countries. They conclude that…

To examine the relationship between television viewing and early school achievement, children's quantitative and verbal test scores were correlated with parental responses to a questionnaire concerning the television viewing habits of their children. The sample consisted of 202 kindergarten children and their parents from two suburban school…

The results of an investigation of the relationship between the constructs of creativity and locus of control (LOC) in junior high school students are reported. Two hypotheses were studied: that creativity and intervality would be positively correlated, and an intervention including creativity training would result in significant gains in the…

College students in introductory foreign language courses (French, German, and Spanish) were the subjects of a study to determine what if any correlation exists between ability and motivation on the one hand and achievement on the other in learning a second language. The ability measure (predicted grade point average) was found to correlate…

To examine the relationship between reading performance and television viewing, the state of Connecticut's third assessment of educational progress in reading included questions relating to the reading materials available in students' homes, their television viewing habits, and their attitudes toward reading. Approximately 8,000 students in grades…

A study was conducted to determine whether a significant correlation existed between an essay's letter grade and five important factors of syntactic maturity (clause length, t-unit length, sentence length, clauses per t-unit, and t-units per sentence). A total of 45 essays--15 A, 15 B, and 15 C papers as graded by five junior college English…

To test the impact of mass communication on the modernization of individuals living in the countries of the Third World, a follow-up study was devised (the original occurred in 1962), whereby migrant residents in Ankara, Turkey, were interviewed regarding the effects of urbanization on their lives. While economic and living conditions had improved…

Stanford's Environment for Teaching study involved analysis of data collected in 1973 and 1975 by questionnaire and interview from 188 principals and over 200 teachers from a stratified sample of 46 elementary schools drawn from 34 San Francisco Bay Area school districts. Using aggregate indices, the study examined data relating school complexity…