This Digest describes matrix sampling of test items as an approach to achieving broad coverage while minimizing testing time per student. Matrix sampling involves developing a complete set of items judged to cover the curriculum, then dividing the items into subsets and administering one subset to each student. Matrix sampling, by limiting the…

The purpose of the current study was to investigate the effectiveness of four methods of handling missing data. Effectiveness was defined as the probability of reproducing the covariance matrix of the target sample accurately. Effectiveness of the missing data methods was assessed by manipulating the proportion of cases containing missing values…

This Digest describes four types of errors in mail surveys and summarizes the ways they can be reduced. Any one of these sources of error can make survey results unacceptable. Sampling error is examined through inferential statistics applied to sample survey results. In general, increasing sample size will decrease sampling error when simple…

Article considered recent research in language conducted by a teacher educator from St. Lucia, West Indies. Her specific focus was on the methods devised for collection and analysis of language samples. (Author/RK)

Article presented a list of questions designed to learn from the school trustee how effective his role in developing educational objectives is. (RK)

It is the purpose of this paper to provide social scientists with some insight in dealing with Type 11 error, that is, the probability of failing to reject a false null hypothesis, and therefore, optimum sample size and number of levels, in the random-effects analysis of variance. (Author/RK)

The purpose of the present study is to provide some facts on the morbidity risk and incidence of enuresis in Icelandic children, aged 5-15 years, and to study its association with some mental and environmental variables often related to this symptom. (Author)

The purpose of this study is to examine the SACU variables in relation to other commonly used variables in predicting university success in Alberta. (Author)

The present research is a comparison of faculty from a large university with faculty from a small college in a rather homogeneous Southeastern region of the United States. (Author)

This investigation had two main aims: 1.) to study any differences in creativity between groups of children of high and low ability; 2.) to ascertain whether the relationship between selected measures of creativity was higher than the relationship between intelligence and each measure of creativity. (Author)

The present study provides evidence that there are differences in judged desirability between mentioning hygiene factors and talking about motivators. (Author)

575 adults drawn from both rural and urban areas completed a questionnaire designed and used originally by Flugel in 1947 to see how far lay opinions on intelligence reflect views held by professional psychologists and how far lay responses now differ from those reported by Flugel. (Editor)

This paper deals with the situation where scores on a number of parallel tests are obtained for each of a set of persons, and these persons are assumed to constitute, in so far as their scores for the tests are concerned, a random sample from some population of interest. (Author)

The present study purports to investigate further the antecedent personality characteristics of alcoholics by examining the personality test scores of a sample of college freshmen later hospitalized for alcoholism and comparing them to a control group of classmates. (Author)

The purpose of this study is to assess continuing education needs of registered nurses in Iowa to provide more purposeful planning to meet their developmental needs. (Author)