Evaluates two hypotheses that argue that the Spanish demonstrative verbs "aqui" and "aca" can alternate in some contexts. The results of a quantitative study of Venezuelan Spanish show that the delimination hypothesis, which states that the place denoted by "aqui" is less limited and defined than the place denoted by "aca," is valid. (29…

Describes the OCLC Internet Resource project which investigated the nature of electronic textual information available through remote access using the Internet and the practical and theoretical problems associated with creating machine-readable cataloging (MARC) records using USMARC format for computer files and the Anglo-American Cataloging…

Correlations between centralization and effectiveness were obtained from 26 independent samples in the organization science literature. Hypotheses were developed and statistically tested. The hypotheses that were supported are reflected in a final theory of the centralization-effectiveness relationship. (75 references) (MLF)

Several new multiple comparison procedures are discussed in terms of their applicability to the problem of generating confidence intervals based on range null hypotheses to control the familywise Type 1 error in multiple sample experiments. These procedures seem fairly robust to violations of normality and homogeneity assumptions. (SLD)

Argues that selecting data according to expected information gain, as proposed by M. Oaksford and N. Chater (1994, 1996), leads to suboptimal performance in Bayesian hypothesis testing. Procedures are presented that are better justified normatively, their psychological implications are explored, and a number of novel predictions are derived under…

Argues that Klauer's proposal (1999) and proposal presented are equally well justified from a normative perspective and that, where the predictions of the two approaches diverge, the existing empirical evidence is consistent with the information gain approach. Recommends that more empirical research is required to decide between these two…

The hypothetical deduction model of educational research should be replaced by one that distinguishes between the logical structure of hypothetico-deduction and its methodological application. Such a framework explores relationships between three levels of explanation: observation sentences, observation categoricals, and theory formulations. (SK)

Describes the implementation of a standard Pearson chi-square statistic to test the null hypothesis of bivariate normality for latent variables in the Type I censored model. Assesses the behavior of the statistic through simulation and illustrates the statistic through an empirical example. Discusses limitations of the test. (Author/SLD)

Two bootstrap tests are proposed to test the independence hypothesis in a two-way cross table. Monte Carlo studies are used to compare the traditional asymptotic test with these bootstrap methods, and the bootstrap methods are found superior in two ways: control of Type I error and statistical power. (SLD)

Reviewed aspects of the SIBTEST procedure through three studies. Study 1 examined the effects of item format using 40 mathematics items from the Scholastic Assessment Test. Study 2 considered the effects of a problem type factor and its interaction with item format for eight items, and study 3 evaluated the degree to which factors varied in the…

General normal ogive and logistic multiple-group models for paired comparisons data are described. In these models, scale value and discriminal dispersion parameters are allowed to vary across stimuli and respondent populations. Model fitting and hypothesis testing are illustrated using health care coverage data from two age groups. (SLD)

Tested claims by Lucy (1992a, 1992b) that differences between the number marking systems used by Yucatec Maya and English lead speakers of these languages to differentially attend to either the material composition or the shape of objects. Replicated Lucy's critical objects' classification experiments using speakers of English and Japanese.…

Proposes the use of statistical power subsequent to the results of hypothesis testing in business research. Describes how posttest use of power might be integrated into business statistics courses. (SK)

Sidman's (2000) theory regarding the origin of equivalence relations predicts that a reinforcing stimulus common to distinct equivalence classes must drop out of the equivalence relations. This prediction was tested in the present study by arranging class-specific reinforcers, R1 and R2, following correct responding on the prerequisite conditional…

In this response to Pinker and Jackendoff's critique, we extend our previous framework for discussion of language evolution, clarifying certain distinctions and elaborating on a number of points. In the first half of the paper, we reiterate that profitable research into the biology and evolution of language requires fractionation of ''language''…