An empirical study of statistical overkill investigated the generalizability of multiple regression equations as a function of the subject/variable ratio. Data from various-sized groups of rehabilitation clients were used to develop the equations. Findings showed that equations developed on samples with less than a 10 to 1 ratio failed to…

Paper reviews the test for regression lines and provides equations for expanding this test to regression planes. (Author)

Examined characteristics of the neighborhoods from which clientele of an alcohol treatment center were derived. Using 1970 Milwaukee census figures and patient information, computer analysis showed positive correlations between admissions and ethnicity, educational status, nonfamiy dimension, adult male and adolescent female neighborhoods,…

Appropriate methods are described for research workers in sociology to use as they perform causal analyses of data from surveys. Particular emphasis is placed on the causal analysis of qualitative variables. (Author/DB)

The use of life history or biographical information to predict various college experiences of women was examined in this study of 327 women. The results indicated that life history data could be used to make longitudinal predictions and are discussed in terms of their implications for counseling students in higher education. (Author/LBH)

A study demonstrated the use of logistic regression in conjunction with a new structural equations modeling technique for a university attrition study. The results and their methodological implications are discussed. (MSE)

Discusses procedures and considerations involved with secondary analyses of longitudinal databases. Procedures involve (1) formulating questions; (2) creating a feasibility matrix; (3) reformulating questions; (4) creating derived variables; (5) performing data reduction; (6) analyzing data; and (7) interpreting results. Problems associated with…

A statistical model to predict success or failure in a general psychology course was constructed and validated with 935 community college students. Best predictors were age, high school grade point average, and composite ACT (American College Testing) scores. The model was validated by comparing error rates to those from two previous semesters of…

Using data describing entry into preschool among children with special needs, this paper introduces the fundamental statistical quantities of event occurrence--hazard and survivor functions. The paper discusses construction of formal statistical models of event occurrence over time, predictors that can be included in hazard models, and importance…

This experiment examined delayed self-recognition in 24 2.5-year-old and 24 3-year-old children. Children were marked covertly with a sticker on their forehead while playing a game, after which their photograph was taken. When shown this photograph, the 3- but not the 2.5-year-olds reached to remove this sticker reliably. However, the older…

Prior research into factors predicting arrest in domestic violence cases is limited in three regards: (a) no examination of whether mandatory arrest policies are associated with increased risk of arrest across multiple jurisdictions; (b) little consideration of whether police organizational characteristics influence arrest in such cases; and (c)…

Background: Out of area placements for people with challenging behaviour represent an expensive and often ineffective strategy for meeting the needs of this service user group. Methods: More than 800 agencies and service settings in a large area of South Wales were screened to identify children and adults with challenging behaviour against a…

The purpose of this study was to determine the relationship between participation in the Summer Bridge Program, grade point averages and retention of first-year college students. Additionally, this study examined the differences in grade point averages of college students after their first semester and first-year of college with regard to their…

The introduction of Information and Communication Technology (ICT) into the school curricula raised some hopes that it could minimize gender differences in learning. The interactive nature of ICT materials was believed to provide a favorable environment especially for girls to learn. This article reports the findings of the study that analyzed…