We explore the immediate and longer term consequences of different types of instruction about a central topic in middle school science: the "Control of Variables Strategy" (CVS). CVS represents the procedural and conceptual basis for designing simple, unconfounded experiments, such that unambiguous causal inferences can be made. CVS…

Test-based educational accountability systems have considerable appeal to politicians, policymakers, and the general public. Such systems have been widely used by states for more than a decade and with the enactment of the No Child Left Behind Act of 2001 all states must now implement an accountability system that uses results from assessments in…

This paper investigates the processes that predict reading acquisition. Associations between (a) scaffolding errors (e.g., "torn" misread as "town" or "tarn"), other reading errors, and later reading and (b) vowel and rime inferences and later reading were explored. To assess both of these issues, 50 6-year-old children were shown a number of CVC…

This chapter considers whether there are grounds for believing that an inquiry-based approach to teaching and educational development will enhance practice. (Contains 1 table.)

The databases of three books with almost identical titles are examined in order to throw light on the theory of neutralistic professionalism of news interviewers and on the empirical logic of the most recent of the three: The news interview by Steven Clayman and John Heritage (2002). Instead of a theory of neutralism, a theory of perspectivity…

This study investigated the development of the understanding of class inclusion in children age 5, 7, and 9 years, whose performance on a qualitative class-inference task assessing their appreciation of the transitive and asymmetrical nature of inclusive relations within the animal domain was compared with their ability to make quantitative…

A study investigated whether readers infer automatically highly likely consequences of a state modification, intentional (action) or non intentional (event), described in short texts. Subjects, 48 psychology undergraduates at Paris VIII University (France), read explicit, predictable, or control forms of short passages using a Rapid Serial Visual…

In many practical applications of item response theory, the parameters of overlapping subsets of test items are estimated from different samples of examinees. A linking procedure is then employed to place the resulting item parameter estimates onto a common scale. It is standard practice to ignore the uncertainty associated with the linking step…

Probability-based inference in complex networks of interdependent variables is an active topic in statistical research, spurred by such diverse applications as forecasting, pedigree analysis, troubleshooting, and medical diagnosis. This paper concerns the role of Bayesian inference networks for updating student models in intelligent tutoring…

Educational test theory consists of statistical and methodological tools to support inferences about examinees' knowledge, skills, and accomplishments. The evolution of test theory has been shaped by the nature of users' inferences which, until recently, have been framed almost exclusively in terms of trait and behavioral psychology. Progress in…

This paper explores the issues surrounding the study of higher education, usually involving the analysis of structural-functionalism, to less tradition-bound areas representing idealism. It examines these issues through the theoretical framework of symbolic interactionism which, it is noted, rests in the interpretive paradigm. The paper begins…

Back-of-the-envelope problems call for approximate calculations of quantities that can be related to information in a person's knowledge but are not solved precisely. These problems provide an opportunity for the study of processes and the role of general knowledge in ill-defined problem solving. Subjects with advanced and intermediate knowledge…

This study examines the ability of 20 5- and 6-year-old children to determine whether an inference could reliably be made or whether a problem was undecidable. Children were given a random series of 8 decidable and 16 undecidable problems in which they had to determine in which of 2 houses a target character could be found. There were two…

In the process of developing a conditionally-dependent item response theory (IRT) model, the problem arose of modeling an underlying multivariate normal (MVN) response process with general correlation among the items. Without the assumption of conditional independence, for which the underlying MVN cdf takes on comparatively simple forms and can be…

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…