In this paper, we present a study of a large corpus of student logic exercises in which we explore the relationship between two distinct measures of difficulty: the proportion of students whose initial attempt at a given natural language to first-order logic translation is incorrect, and the average number of attempts that are required in order to…

While autism is one of the most intensively researched psychiatric disorders, little is known about reasoning skills of people with autism. The focus of this study was on defeasible inferences, that is inferences that can be revised in the light of new information. We used a behavioral task to investigate (a) conditional reasoning and (b) the…

Despite the fact that rigor is generally advocated for gifted learners, how it should be measured is not well defined. This lack of specificity in defining academic rigor often makes it difficult to determine if curriculum for gifted learners met their learning needs. With this need in mind and in response to the challenge of the North Carolina…

Biological rhythms play a prominent role in the modulation of human physiology and behavior. [Smith, K., Valentino, D., & Arruda, J. (2003). "Rhythmic oscillations in the performance of a sustained attention task." "Journal of Clinical and Experimental Neuropsychology," 25, 561-570] suggested that sustained human performance may systematically…

History teachers are faced with an impossible dilemma. Voices from every corner urge them to use primary sources. Sources, teachers are told, are to history what the laboratory is to science: the place where the subject becomes most vital. At the same time, any teacher who has used sources knows the many obstacles. Using sources to make history…

A computer programming class for students of mechanical engineering was redesigned and assessed: Cognitive Load Theory was used to redesign the content; online technologies were used to redesign the delivery. Student learning improved and the dropout rate was reduced. This article reports on both attitudinal and objective assessment: comparing…

The authors clarify the source of a conflict between previous findings related to metacognitive control over the distribution of practice. In a study by L. Son (2004), learners were initially presented pairs of Graduate Record Examination (GRE) vocabulary words and their common synonyms for 1 s, after which they chose to study the pair again…

Expectations about self-competence and difficulty of a task to be undertaken can foster motivation and hence affect engagement, giving rise to individual differences in performance. This effect was examined in a memory task. An increase in recall performance following instructions about high competence was hypothesised; in addition, a modulating…

It is known that the Rasch model is a special two-level hierarchical generalized linear model (HGLM). This article demonstrates that the many-faceted Rasch model (MFRM) is also a special case of the two-level HGLM, with a random intercept representing examinee ability on a test, and fixed effects for the test items, judges, and possibly other…

The authors present neuropsychological evidence distinguishing binding between form, color, and size (cross-domain binding) and binding between form elements. They contrasted conjunctive search with difficult feature search using control participants and patients with unilateral parietal or fronto/temporal lesions. To rule out effects of task…

Early in their introductory college linear algebra class, the author's students learn to use a matrix to represent and solve systems of linear equations. Indeed, this simple idea is perhaps the foundational idea of the course. Nevertheless, the author was delighted to find that the study of linear systems can lead to surprisingly deep mathematics.…

Learning must be constrained for it to lead to productive generalizations. Although biology is undoubtedly an important source of constraints, prior experience may be another, leading learners to represent input in ways that are more conducive to some generalizations than others, and/or to up- and down-weight features when entertaining…

It is undeniable that learning the articles "a," "an," and "the" presents serious difficulties to the learners and teachers alike in the English Language classrooms, but previous studies done on the teaching of articles have shown that there are many techniques of teaching the articles that can be employed in the…

The purpose of this study was to evaluate the effectiveness of group testing as a pedagogical technique to enhance learning in a difficult subject such as statistics. Individual test scores were compared to their group test scores for the same, identical test. A t test was used to compare the scores for 157 randomly selected MBA students enrolled…

Many states are currently developing high school reforms labeled "Linked Learning" (formerly known as Multiple Pathways) built on the fundamental insight that career and technical education can be academically rigorous. Linked Learning policies also allow students to gravitate to schooling themes that are personally relevant, and they…