Identifies some errors commonly committed when educational research results are reported. (BR)

This unobtrusive study examined whether the accuracy of reference service provided by student reference assistants (SRAs) and full-time paraprofessional department assistants (DAs) at the Brigham Young University library had improved since 1987. The effects of the following factors on accuracy were also considered: (1) whether a question was…

The overwhelming majority of research on environmental influences has concentrated on the social environment, to the relative neglect of the physical environment. This neglect is justified by an unvalidated hypothesis, namely that the physical environment must be mediated by social parameters in order to influence development. Two studies were…

An index that measures the degree of comfort a researcher has relative to statistical inference application is proposed. The index is calculated by selecting and weighting components inherent in the conduct of hypothesis tests and confidence intervals, and its values range from zero to one. To organize the components of the index, inference…

Each of the four classic multivariate analysis of variance (MANOVA) tests of statistical significance may lead a researcher to different decisions as to whether a null hypothesis should be rejected: (1) Wilks' lambda; (2) Lawley-Hotelling trace criterion; (3) Roy's greatest characteristic root criterion; and (4) Pillai's trace criterion. These…

This study considers the theories of impulse buying in an examination of the effects on circulation of library books when books are displayed face front (with all or most of the book jacket showing) as opposed to spine front. Reviews of the literature on consumer behavior and on library displays support the hypothesis of this study, i.e., that…

Vendors frequently compete to have their technology adopted as part of a voluntary consensus standard, and this paper reports the results of an empirical study of the factors that influence the choice of technologies by voluntary technical standards committees. Participation in standards committees is viewed as an aspect of the product development…

Recent research on hypothesis testing strategies (the strategy a person uses to determine the correctness of a specific hypothesis) has produced contradictory results. The three strategies available have been labeled confirmatory, neutral, and disconfirmatory. Some research has found that a confirmatory testing style predominates, while other…

Some 1000 questions in education journals were analyzed for aspects of usage and content, linguistic structure, cognitive process, and logical operation. Only half of the studies examined were found to use questions, and only a third of the questions addressed teaching and learning, curriculum and milieu. The great majority of questions entailed a…

As useful as LISREL may be in model estimation and testing, its most significant contribution to date is the encouragement and example it gives for right thinking about research and right planning of research. The encouragement to hypothesize the best possible model for the process that is the object of study, and to plan measurements that…

In the educational research literature alpha, the a priori level of significance, and p, the a posteriori probability of obtaining a test statistic of at least a certain value when the null hypothesis is true, are often confused. Explanations for this confusion are offered. Paradoxically, alpha retains a prominent place in textbook discussions of…

This paper provides researchers with a method of determining sample size for a given power level in the preparation of a single group exploratory repeated measure analysis. The rationale for determining sample size which takes into consideration the powers and assumptions of both the adjusted univariate and multivariate repeated measures tests is…

Describes a science activity, using safety pins, illustrating steps in problem solving. (PEB)

Introductory statistics texts give extensive coverage to two-sided inferences in hypothesis testing, interval estimation, and one-sided hypothesis tests. Very few discuss the possibility of one-sided interval estimation at all. Even fewer do so in any detail. Two of the business statistics texts we reviewed mentioned the possibility of dividing…

Instructors can use both "multiple-choice" (MC) and "constructed response" (CR) questions (such as short answer, essay, or problem-solving questions) to evaluate student understanding of course materials and principles. This article begins by discussing the advantages and concerns of using these alternate test formats and…