This study shows that residual variation can cause problems related to scaling in exponential random graph models (ERGM). Residual variation is likely to exist when there are unmeasured variables in a model--even those uncorrelated with other predictors--or when the logistic form of the model is inappropriate. As a consequence, coefficients cannot…

This longitudinal study evaluates the impact of a new Algebra 1 course at a High School for language-based learning-disabled (LD) students. The new course prioritized the teaching of relationship graphs and functions as an introduction to algebra. Across three studies, the dissertation documents and evaluates the progress made by LD high school…

Part of the Eleventh Annual Report to the Ontario Ministry of Education, this report describes the grade and program location of students who entered kindergarten in Ottawa and Carleton, Ontario in 1974, known as the K-74 cohort. The first section of the report deals with the K-74 cohort; later sections deal with students who joined either early…

THIS ARTICLE PRESENTS SIZE AND GROWTH VELOCITY DATA COLLECTED DURING A LONGITUDINAL STUDY OF 111 NORMAL, HEALTHY NEGRO INFANTS FROM LOWER-MIDDLE-CLASS FAMILIES. DATA WERE OBTAINED FROM BIRTH RECORDS AND MEASUREMENTS TAKEN DURING ROUTINE PHYSICAL EXAMINATIONS. WHEN THIS NEGRO SAMPLE WAS COMPARED WITH WHITE INFANTS IN SIMILAR STUDIES IT WAS FOUND…

This study reports various aspects of the analyses carried out on the longitudinal data reported in a previous study (PS 007 345) for determining the general growth patterns and growth velocity of mental and motor development. Preliminary analyses focused on the selection of the growth curve, its evaluation in the 208 individual cases, and the…

Focusing on a 7-year period beginning in 1984, this report examines statewide staffing and salary trends for California community college faculty. Highlighted findings include the following: (1) between 1984 and 1990, there was a steady increase of nearly 3% per year in all categories of community college staffing, bringing the employee count to…

Each year, in order to determine the factors that influence student attrition, Vancouver Community College (VCC) selectively surveys former students who dropped out (discontinuants) of occupational programs on VCC's three main campuses. Former students were surveyed regarding their personal characteristics, main goals for coming to VCC, activities…

In 1988, a study was conducted by the Research Department of the Minnesota House of Representatives to examine college student retention and enrollment patterns in the state. Community college retention was examined by tracking the progress of fall 1987 entering freshmen through 1990. Interviews, focusing on students' plans, background,…