Difficulties encountered by students when solving problems were examined using Program of Actions and Methods (PAM) for systematic problem solving in science. Difficulties encountered included those in analyzing the problem, planning the problem-solving process, executing routine operations, and those related to the ways teachers solve problems.…

Describes a systematic investigation of the understanding of the concept of acceleration among students enrolled in a variety of introductory physics courses through individual demonstration interviews. Describes and identifies some conceptual difficulties and discusses some implications for instruction. (Author/SK)

These experiments focus upon two assumptions of the levels of processing formulation: that context provides exclusive control over the qualitative nature of encoding, and that amount recalled is determined both by cue-trace compatibility and by depth. The results cast doubt upon the validity of each assumption. (Author/MH)

Performance and persistence on the Concealed Figures Test and the Embedded Figures Test decreased: (1) after short-duration failure when subjects were falsely led to attribute failure to task difficulty; and (2) after long-duration failure when subjects were falsely led to attribute failure to lack of ability. (CP)

Experiment 1 suggested that age differences in line-drawing interpretation among subjects between 6 and 24 years reflected changes in short-term memory for features and changes in strategies used to integrate features over space and time. Experiment 2 suggested that older observers were more active in their attempts to interpret drawings and that…

The relationship between gains in student achievement on a concept test and teacher effectiveness ratings without test score feedback was examined in a study involving 235 high school students. Ratings of teacher effectiveness were slightly but significantly correlated with student learning. Rankings were often inconsistent with ratings. (TJH)

Describes study that examined the effects of presentation sequence of examples and example difficulty on undergraduate learning with computer-based instruction. Establishing example difficulty according to a generalization formula versus subject matter experts is discussed, and effects on time on task and the number of examples required are…

Describes PRECEPTOR, an intelligent tutoring system that provides multiple explanations for algebraic word problems involving two variables. Modeling the cognitive processes of an effective teacher is discussed, the capacity for individualized tutoring is examined, and differential tutoring based on varying difficulty levels is explained. (17…

The article documents an intervention approach with learning disabled students which combines the effectiveness of Direct Instruction and mastery learning with the efficiency of technology (videodiscs and computers). Examples are given of effective technology use to teach earth science/chemistry, fractions, health, reasoning skills, and…

Readability formulas applied to materials for hearing-impaired students do not account for important factors in reader-writer-text interaction. Factors include the reader's purpose, cultural background, and extent of background knowledge; writers' assumptions about readers; the text's structure, content, and cohesion; and the role of…

One hundred thirteen kindergartners and first graders completed phonological awareness (PA) tasks designed to separate task difficulty from linguistic complexity. Comparison of these results with measures of early literacy suggests that PA measured by differences in linguistic complexity seems more closely related to the single factor on which…

This paper reviews studies that have used instructional variables as nonaversive interventions for problem behaviors of individuals with severe disabilities. These include student choice of task, task variation, pace of instruction, interspersal of high probability tasks, partial versus whole task training, decreasing task difficulty, and a…

Effects of dimensionality on ability estimation of an adaptive test were examined using generated data in Bayesian computerized adaptive testing (CAT) simulations. Generally, increasing interdimensional difficulty association produced a slight decrease in test length and an increase in accuracy of ability estimation as assessed by root mean square…

Discusses how students generate meanings for mathematical word problems, develops a generative predicational model to account for students' comprehension of word problems, and describes an empirical study of Israeli sixth graders that was designed to test the model. Talk aloud protocols of the students are analyzed, and hypotheses tested are…

Challenges in applying cognitive strategy research to complex knowledge domains in students with learning disabilities include the need to focus on deficits in domain-specific knowledge; adaptation of assessment designs to answer cognitive questions; and procedures for individual cognitive strategy instruction in group settings. A research agenda…