It is well known that students of inferential statistics find the hypothetical, probabilistic reasoning used in hypothesis tests difficult to understand. Consequently, they will also have difficulties in understanding "p"-values. It is not unusual for these students to hold misconceptions about "p"-values that are difficult to…

In 1881, Donald MacAlister posed a problem in the "Educational Times" that remains relevant today. The problem centers on the statistical evidence for the effectiveness of a treatment based on a comparison between two proportions. A brief historical sketch is followed by a discussion of two default Bayesian solutions, one based on a…

Multilevel models are often used to evaluate hypotheses about relations among constructs when data are nested within clusters (Raudenbush & Bryk, 2002), although alternative approaches are available when analyzing nested data (Binder & Roberts, 2003; Sterba, 2009). The overarching goal of this article is to suggest when it is appropriate…

Rising costs, burgeoning debt, and falling credit ratings are among the financial challenges faced by small, tuition-dependent private colleges, including many members of the Council for Christian Colleges & Universities (CCCU). In their efforts to generate more revenue, most of these institutions have focused on enrollment strategies as the…

Background/Context: Principles of evidential reasoning have often been discussed in the context of educational and psychological measurement with respect to construct validity and validity arguments. More recently, Mislevy proposed the metaphor of assessment as an evidentiary argument about students' learning and abilities given their…

An in-class activity is described that can be used not only to motivate hypothesis testing, but also to understand and compute the p-value and power in a statistical test. (Contains 3 figures.)

We examined the influences of different facets of psychological collectivism (Preference, Reliance, Concern, Norm Acceptance, and Goal Priority) on team functioning at 3 different performance depictions: initial team performance, end-state team performance, and team performance change over time. We also tested the extent to which team-member…

The role of the on-going social father in America has received increased attention in the last quarter century. In some quarters, the U.S. father has been viewed as supernumerary or optional. In other quarters, the U.S. father has been perceived to be essential to the optimum development of his children. Still other factions have been intermediate…

This dissertation analyzes the degree and shape of differences between private and public sectors (intersectoral) and within the private sector (intrasectoral) in Polish higher education. The intersectoral hypothesis is that Poland's two sectors are quite different and that these differences mostly follow those claimed and so far found in leading…

This study explores opportunity costs of postsecondary education in the U.S. in the past three decades. Based on human capital theory, data from the U.S. Census, along with parameters for high education achievement (involving bachelors and advanced degrees), were fed into a forecasting model developed for this purpose. Beyond descriptive…

Written by a social worker for social work students, this is a nuts and bolts guide to statistics that presents complex calculations and concepts in clear, easy-to-understand language. It includes numerous examples, data sets, and issues that students will encounter in social work practice. The first section introduces basic concepts and terms to…

One of the lightning rods in the discourse over teacher pay has been the question of "how much" teachers should be paid. What the "how much" debate does not directly address, however, is the question of "how" teachers should be paid. This paper attempts to help lay groundwork for a better understanding of what exactly teachers want in terms of how…

This article examines the intersection of age and ICT (information and communication technology) competency and critiques the "digital natives versus digital immigrants" argument proposed by Prensky (2001a, 2001b). Quantitative analysis was applied to a statistical data set collected in the context of a study with over 2,000 pre-service…

Empirical studies addressing admission to and graduation from a doctoral program focusing on educational leadership are noticeably absent within the professional literature, and this study seeks to fill partially this void through testing specific hypotheses. Archival data were used to conduct a three group discriminant analyses where the…