Four steering (leadership) functions that appear to be critical for innovation success were identified and delineated in case studies of Dutch primary schools. The relationship between these functions and three implementation outcomes (classroom practices, schoolwide practices, use of materials) was examined. Implications for inservice principal…

The randomized response (RR) technique is often used to obtain answers on sensitive questions. A new method is developed to measure latent variables using the RR technique because direct questioning leads to biased results. Within the RR technique is the probability of the true response modeled by an item response theory (IRT) model. The RR…

A limitation of the principal components method is its scale dependence. This note shows that the method is scale invariant if the normalization is modified in an obvious way. Then the effect of a change in units is as transparent as in linear regression, and principal components can be used without apology. Most researchers who use multivariate…

Statistical models for school effectiveness rankings are assessed. An analysis of linear models with fixed regression parameters and models with separate regression parameters for each school is presented. In the first case, the regression lines are parallel and the ranking of the schools is the same for all student backgrounds. In the second…

A method for estimating the parameters of the Rasch model is examined. The unknown quantities in this method are the item parameters and the distribution function of the latent trait over the population. In this sense, the method is equivalent to marginal maximum likelihood estimation. The new procedure is based on a method suggested by J. Kiefer…

Studies students' perceptions of the moral atmosphere in various levels of secondary schools in the Netherlands. Reveals significant differences between schools and school types based on analysis of variance. Does not claim any ability to predict undesirable behaviors at school based on measures of moral atmosphere. Includes the survey form. (DSK)

A method is proposed for the detection of item bias with respect to observed or unobserved subgroups. The method uses quasi-loglinear models for the incomplete subgroup x test score x item 1 x ... x item k contingency table. If the subgroup membership is unknown, the models are the incomplete-latent-class models of S. J. Haberman (1979). The…

The use of loglinear latent class models to detect item bias was studied. Purposes of the study were to: (1) develop procedures for use in assessing item bias when the grouping variable with respect to which bias occurs is not observed; (2) develop bias detection procedures that relate to a conceptually different assessed trait--a categorical…

Examines relationship between overeducation and enterprise-related schooling, using data from a 1983 Dutch study of 43-year-old employees. Correctly allocated workers have the highest probability of participation in enterprise-related schooling, whereas undereducated workers have the lowest probability. The average rate of return on a year of…

Differences between traditional linear regression and a Bayesian approach to classification are discussed. Classification consists of assigning subjects to one of several available treatments on the basis of their test scores when the success of each treatment is measured by a different criterion. Formulating this problem as an empirical Bayes…

Develops an empirical model for heterogeneous human capital investment decisions, using survey data from a cohort of Dutch workers. Applies the model to investment in three forms of enterprise-related training: technical, economic-administrative, and other. Results show that technical training yields the lowest wage gain, while other…

This article presents the first results of the study of argumentative essays in English as a foreign language and in Spanish as a foreign language and as a native language, carried out at Radboud University Nijmegen (formerly the University of Nijmegen) between 2002 and 2008. The aim of the project is to compare teachers' holistic assessments with…

This paper describes a quantitative method to investigate the enrollment motives of students, and reports on the application of the method at the University of Utrecht (The Netherlands). The paper discusses environmental, educational/organizational, and image factors influencing a student's choice of a particular university. A quantitative…

The Netherlands' secondary education system is highly differentiated, with four different school types for four scholastic ability levels. Final examinations must accommodate these four levels, and require a test-independent definition of the intended final ability levels as well as a sample-free evaluation of the range of ability levels at which…

A method to calculate the need for academic staff per faculty, based on educational programs and numbers of students, is described which is based on quantitative relations between programs, student enrollment, and total budget. The model is described schematically and presented in a mathematical form adapted to computer processing. Its application…