This article reconsiders the issue of clinical versus statistical prediction. The term clinical is widely used to denote 1 pole of 2 independent axes: the observer whose data are being aggregated (clinician/expert vs. lay) and the method of aggregating those data (impressionistic vs. statistical). Fifty years of research suggests that when…

This article presents some data from a major sports event that can be used in common statistical analyses.

This article discusses three different online services providing federated access to finding aids relating to archives found in a number of repositories: the Archives Hub, Access to Archives (A2A) and Navigational Aids for the History of Science, Technology and the Environment (NAHSTE). While the scale of the services is very different, a…

A general inductive approach for analysis of qualitative evaluation data is described. The purposes for using an inductive approach are to (a) condense raw textual data into a brief, summary format; (b) establish clear links between the evaluation or research objectives and the summary findings derived from the raw data; and (c) develop a…

We argue that the report by Templer and Arikawa contains misleading conclusions and is based upon faulty collection and analysis of data. The report fails to hold up for quality of data, statistical analysis, and the logic of science.

Correlated data are very common in the social sciences. Most common applications include longitudinal and hierarchically organized (or clustered) data. Generalized estimating equations (GEE) are a convenient and general approach to the analysis of several kinds of correlated data. The main advantage of GEE resides in the unbiased estimation of…

In 1993, the state of Massachusetts implemented comprehensive reforms that included increased state aid to local school districts. This study presents empirical evidence on whether these reforms actually increased educational spending and, if so, in what functional areas. These evaluations are based on relatively detailed annual financial data…

An introduction and explanation of the epistemological differences of quantitative and qualitative research paradigms is first provided, followed by an overview of the realist philosophical paradigm, which attempts to accommodate the two. From this foundational discussion, the paper then introduces the concept of meaning making in research methods…

Having an abundance of data residing in individual silos across campus, but little decision-ready information, is a typical scenario at many institutions. One problem is that the terms "data warehousing" and "business intelligence" refer to very different things, although the two often go hand-in-hand. "Data…

Bacteria are cultured in medical laboratories to identify them so patients can be treated correctly. The tryptone dataset contains measurements of bacteria counts following the culturing of five strains of "Staphylococcus aureus". It also contains the time of incubation, temperature of incubation and concentration of tryptone, a nutrient. The…

The objective of this article is to present the Pre-Conceptual Map methodology as a formalized way to identify, document, and utilize preconceived assumptions on the part of the researcher in qualitative inquiry. This technique can be used as a stand alone method or in conjunction with other qualitative techniques (i.e., naturalistic inquiry).…

Current psychiatric nosology depicts posttraumatic stress disorder (PTSD) as a discrete diagnostic category. However, only one study has examined the latent structure of PTSD, and this study suggested that PTSD may be more accurately conceptualized as an extreme reaction to traumatic life events rather than a discrete clinical syndrome. To build…

There is need for objective and reliable single-case research (SCR) results in the movement toward evidence-based interventions (EBI), for inclusion in meta-analyses, and for funding accountability in clinical contexts. Yet SCR deals with data that often do not conform to parametric data assumptions and that yield results of low reliability. A…

Part one of this article described the first two stages that schools move through as they learn to link data to higher student achievement. In stage one, schools make initial efforts to contextualize the many data sources available, but their data analysis is mostly for its own sake. In stage two--using data to improve educational efficiency--the…

In this article, the authors describe how to construct a mock crime scene, acquire a pig carcass, sample its arthropod fauna, integrate photographic, climatic and arthropod successional data, and estimate the postmortem interval (PMI) from insect successional timetables. The experimental layout described in this article represents the untreated…