Higher education is becoming increasingly dependent on voluntary private support, which is favored by US public policy and enhanced by provisions of the Federal Internal Revenue Code that authorize the deduction of amounts of such support from the doners' taxable income. But some facts relating to the character and nature of this support are…

As a measure of school quality, the instrument Indicators of Quality has met the demands of reliability and item discrimination in a statistical study based on in-class observations in all the school districts in metropolitan New York. In this initial application, the 51 observation items were scored positive, zero, or negative and four aggregate…

The fit of educational aspirations of Illinois rural high school youths to 3 related one-parameter mathematical models was investigated. The models used were the continuous-time Markov chain model, the discrete-time Markov chain, and the Poisson distribution. The sample of 635 students responded to questionnaires from 1966 to 1969 as part of an…

The basic objective of the study was to determine whether discrimination is operative in the training component of the WIN program, and to develop and utilize models for measuring its dimensions. The study concludes that no evidence of racial discrimination in WIN training allocations is observable but substantial evidence exists that women are…

The estimation of values of a latent-trait presumed to underlie a given set of item response data is made on the basis of dichotomously scored items utilizing the so-called "normal ogive model" of Lawley and Lord. This model provides an internal scale of measurement, scores which are independent of the particular test items employed, individual…

This is one of a series of eight short monographs intended to aid practicing educators in planning and conducting accountability programs in schools. This booklet discusses how to determine a sampling method that is appropriate to the objectives of a particular research or evaluation effort. Short sections focus in turn on why and when to sample,…

National Longitudinal Survey data for women 30 to 44 years of age in 1967 are used to examine the effects of women's employment experience on their status gains from their career beginnings to 1971. A small but significant effect of employment experience on status gain is found for whites, but not for nonwhites. (Author)

A Monte Carlo study was made of the recovery of cluster structure in binary data by five hierarchical techniques, with a view to finding which data structure factors influenced recovery and to determining differences between clustering methods with respect to these factors. (LMO)

The well-known problem of cumulating error probabilities is reconsidered from a general epistemological perspective, namely, the concepts of severity and of fairness of tests. It is shown that not only Type 1 but also Type 2 errors can cumulate. A new adjustment strategy is proposed and applied. (Author/JAZ)

Meredith's method of extracting a factorially invariant solution is adapted to longitudinal settings. An explorational estimation procedure is presented which attempts to identify the longitudinal factor components of an across occasion variance-covariance matrix. Data from 166 subjects on the Wechsler Adult Intelligence Scale is used to…

Tau, Lambda, and Kappa are measures developed for the analysis of discrete multivariate data of the type represented by stimulus response confusion matrices. The accuracy with which they may be estimated from small sample confusion matrices is investigated by Monte Carlo methods. (Author/LMO)

Conjunctive item response models are introduced such that: (1) sufficient statistics for latent traits are not necessarily additive in item scores; (2) items are not necessarily locally independent; and (3) existing compensatory (additive) item response models including the binomial, Rasch, logistic, and general locally independent model are…

For the purpose of obtaining data to use in test development, multiple matrix sampling plans were compared to examinee sampling plans. Data were simulated for examinees, sampled from a population with a normal distribution of ability, responding to items selected from an item universe. (Author/LMO)

A Bayesian procedure is developed for the estimation of parameters in the two-parameter logistic item response model. Joint modal estimates of the parameters are obtained and procedures for the specification of prior information are described. (Author/LMO)

A recent study (Blair and Higgins, 1980) indicated a power advantage for the Wilcoxon W Test over student's t-test when calculated from a common mixed-normal sample. Results of the present study indicate that the t-test corrected for outliers shows a superior power curve to the Wilcoxon W.