Presents an opinion on the appropriate use of significance tests, especially in the context of regression analysis, the most commonly encountered statistical technique in education and related disciplines. Briefly discusses the appropriate use of power analysis. Contains 47 references. (Author/SV)

Examined performance of first through sixth graders on conditional-inference task, using causal conditionals and a generation of alternatives task. Found a steady age-related increase in uncertainty responses to two uncertain logical forms and an increase in production of disabling conditions for "modus ponens." Individual differences in inference…

This study, with 48 students (including 16 eighth graders with learning disabilities (LD), 16 age level peers, and 16 reading level peers), found that all groups, but especially LD students, benefited from experimenter activation of prior knowledge on reading comprehension tasks testing inferential reading ability. Experimenter activation of prior…

Suggests an account of transitivity and transitive inferential reasoning differing from classic Piagetian and current information processing accounts. Postulates a three-component psychological system, with components relying on perceptual, linguistic, and conceptual subprocesses and sensitivity to simple cues. Maintains that the framework is…

Presents a problem that describes a real-world situation from World War II that tries to estimate the number of German tanks, half-tracks, and aircraft, and a simulation of that problem in which the selection of a suitable estimate is less apparent. (ASK)

Distinguishes between critical and creative thinking and discusses critical-thinking in relation to modern instructional programs and information literacy. Outlines goals in critical-thinking curriculum, critical thinking skills (student disposition, interpretation, analysis, evaluation, inference, presenting argument, and reflection), and…

This study examines the relationship between ESL learners' depth of vocabulary knowledge, their lexical inferencing strategy use, and their success in deriving word meaning from context. Participants read a passage containing 10 unknown words and attempted to derive the meanings of the unknown words from context. Introspective think-aloud…

Assessing students through their Microsoft PowerPoint presentations might be thought to be impossible, a waste of time or a fascination with new technology which will pass sooner or later. However, to make a judgement on such assertions requires examining the strengths and weaknesses of such a form of assessment. Examples within an academic…

At the start of their first semester, 35 college freshmen were given an interview probing (a) their differentiation of scientists' ideas from evidence, and hypotheses from theories; (b) their understanding of the inherent uncertainty of scientific knowledge; and (c) their reasoning about scientific controversies. The most common responses were in…

We present a set-theoretic model of the mental representation of classically quantified sentences (All P are Q, Some P are Q, Some P are not Q, and No P are Q). We take inclusion, exclusion, and their negations to be primitive concepts. We show that although these sentences are known to have a diagrammatic expression (in the form of the Gergonne…

Science content area texts are difficult for most middle school students, particularly whose reading skills are below grade level. This article describes an innovative approach to integrating the teaching of middle school science content and reading skills to increase levels of student success with content area textbooks. For reading instruction,…

Previous research (e.g. "Cognition" 64 (1997) 73) suggests that the privileged level for inductive inference in a folk biological conceptual hierarchy does not correspond to the ''basic'' level (i.e. the level at which concepts are both informative and distinct). To further explore inductive inference within conceptual hierarchies, we examine…

Two psychometric models are presented for evaluating the difficulty of the distractors in multiple-choice items. They are based on the criterion of rising distractor selection ratios, which facilitates interpretation of the subject and item parameters. Statistical inferential tools are developed in a Bayesian framework: modal a posteriori…

Teacher effectiveness is an issue that has received increased attention in recent years, as researchers have become aware of limitations in models that see the school as the key arena for improving pupil learning outcomes. This renewed interest makes it timely to look again at the methods used in teacher effectiveness research. This article…

One of the tasks of language learning is the discovery of the intricate division of labour between the lexical-semantic content of an expression and the pragmatic inferences the expression can be used to convey. Here we investigate experimentally the development of the semantics-pragmatics interface, focusing on Greek-speaking five-year-olds'…