Hierarchical Bayes procedures were compared for estimating item and ability parameters in item response theory. Simulated data sets from the two-parameter logistic model were analyzed using three different hierarchical Bayes procedures: (1) the joint Bayesian with known hyperparameters (JB1); (2) the joint Bayesian with information hyperpriors…

Three methods of estimating test score distributions that may improve on using the observed frequencies (OBFs) as estimates of a population test score distribution are considered: the kernel method (KM); the polynomial method (PM); and the four-parameter beta binomial method (FPBBM). The assumption each method makes about the smoothness of the…

The assessment of individual or community nutritional status involves the use of indicators; when properly analyzed and interpreted, these may be used to decide what strategies to implement, or how to orient activities aimed at improving nutritional status. In primary health care programs, one approach which remains underused involves obtaining…

Attitude measures frequently produce distributions of item scores that attenuate interitem correlations and thus also distort findings regarding the factor structure underlying the items. An actual data set involving 260 adult subjects' responses to 55 items on the Love Relationships Scale is employed to illustrate empirical methods for…

This investigation of information seeking behavior focuses on three behaviors: (1) how people gather information in academic or work environments; (2) the sources they use; and (3) how their behavior relates to the library and its resources. This paper provides a review of the literature on information seeking from 1981 to 1986, a report on a…

The main purposes of this study were to ascertain something of the quality of in-house use of materials in a science library, and to test the use of interviews as a method of measuring such use. Brief interviews were held with 414 users of the University of Illinois Veterinary Medicine Library (VML) between March 2 and May 13, 1987, to obtain…

An extensive comparative analysis of dysfunctional sentences found in the writing of prefreshmen at Bowling Green State University (Ohio) was conducted to examine and to describe possible differences in dysfunctional sentences produced by remedial and nonremedial writers. Writing samples consisted of randomly selected freshman placement…

Educational research, unfortunately, often focuses on finding statistical differences between overall means or averages. Media reports of research routinely present those differences and little else. This paper discusses the importance of considering the spread of the data in addition to the center and how this is relevant to research focused on…

This report is based on final data obtained from several federal surveys including the U.S. Department of Education's Survey of Degrees and Other Formal Awards Conferred, the Integrated Postsecondary Education Data Systems (IPEDS) Completions Survey, and the Survey of Earned Doctorates, the last of which is conducted annually for the National…

Data from the College Board Validity Study Service show that the average multiple correlation of the Scholastic Aptitude Test (SAT) with college grades peaked in 1974 and then tended to decline. Data from other sources also estimate a small average decline from 1974 to 1985. This study documented changes in the SAT and related these changes to…

A study of the effects of television drama on learning of prosocial and antisocial behavior analyzes programs in terms of sex of the actor, apparent motivation for the actor's behavior, and portrayed importance of the action. Results show that the effects on viewers differ according to their sex. (EAO)

A new model is presented that explains reaction time fluctuations in prolonged work tasks. The model extends the so-called Poisson-Erlang model and accounts for long-term trend effects in the reaction time curve. The model is consistent with Spearman's hypothesis that inhibition increases during work and decreases during rest. (TJH)

Describes results of a survey conducted at Indiana State University libraries that studied patron perceptions and demographics related to keyword searching on LUIS, the online public access catalog (OPAC) available through NOTIS (Northwestern Online Total Integrated System.) Demographics studied include age, status, frequency of LUIS use, and…

Analyzes effect sizes in tails of distribution of scores in Feingold's study of joint effects of gender differences in mean and variability on 28 cognitive-ability scales. Effect sizes are smaller than Feingold assumed. Evaluates joint effect of gender differences by number of males and females in extreme score ranges. (SLD)

Little is known about demographic, deafness-related, and diagnostic characteristics of deaf and partially hearing people with psychosocial or psychiatric problems. A study was conducted derived from data from intake assessment interviews of people with hearing loss treated at a Dutch ambulatory mental health center for the deaf between 1987 and…