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…

The application of a multivariate analytic technique for the analysis of data from longitudinal designs with multiple dependent variables is presented. The technigue is the multivariate generalization of univariate repeated measures ANOVA. An application of the technique to data collected using materials from the Asian Studies Curriculum Project…

A Bayesian statistical procedure separating storage from retrieval was used to study development and release of proactive interference in the Brown-Peterson paradigm. A theory of PI is developed stressing response competition at test time and interference in transfer between short- and long-term memory. (CHK)

An approach to the analysis of an aptitude-treatment-interaction (ATI) design in which the treatment groups are based on an underlying factorial structure is described and illustrated. The approach emphasizes description with point and interval estimation. The example design considered consisted of two nominal treatment variables and one interval…

The homogeneity of group regressions test and regions of significance test are two procedures which are frequently recommended for testing and aptitude-treatment or trait-treatment interaction (ATI) hypothesis. The former is used to determine if treatment group regressions are nonparallel while the latter is used to determine the range of aptitude…

THIS STUDY WAS DESIGNED TO TEST THE HYPOTHESIS THAT ASSOCIATIVELY RELATED NOUNS EMBEDDED IN CONNECTED DISCOURSE--AT LEAST IN THE CASE OF ITEMS THAT APPEAR IN THE SAME OR IN CONTIGUOUS SENTENCES--ARE STORED MORE EFFICIENTLY THAN ASSOCIATIVELY UNRELATED NOUNS. A 2X2 FACTORIAL DESIGN WAS EMPLOYED (WITH 20 SS IN EACH GROUP) IN WHICH SS WERE ASKED TO…

THIS PAPER DEALS WITH SOME PSYCHOLOGICAL ASPECTS OF RHETORICAL FORM AND STRUCTURE. THE SUGGESTION IS MADE THAT THE FIRST CONSIDERATION IS A DEFINITION OF THE ENTITY--THE EFFECTIVE STIMULUS--TO WHICH THE S (SUBJECT) RESPONDS. THIS MEANS A SPECIFICATION OF FUNCTIONAL CONTEXT, IN WHICH THE S VIEWS A GIVEN LANGUAGE PERFORMANCE. THE PSYCHOLOGICAL…

The multiple regression or general linear model (GLM) is a parameter estimation and hypothesis testing model which encompasses and approaches the more familiar fixed effects analysis of variance (ANOVA). The transition from ANOVA to GLM is accomplished, roughly, by coding treatment level or group membership to produce a set of predictor or…

Modern reading theories that are concerned with the reading process of either mature or immature readers show no clearcut concern with unit size. The various graphic units that are encountered by the reader include letters, graphemes, clusters (such as blends), syllables, phonograms, affixes and roots, words, phrases, sentences, paragraphs,…

Some aspects of simultaneous tests for means are reviewed. Specifically, the comparison of univariate or multivariate normal populations based on the values of the means or mean vectors when the variances or covariance matrices are equal is discussed. Tukey's and Dunnett's tests for multiple comparisons of means, Scheffe's method of examining…