Configural visual abilities in thirteen children with Williams syndrome (WS) compared to 13 children matched on mental age and 13 children matched on chronological age. Configural abilities were tested through four tasks (1) Silhouette (2) Fragmented (3) Mooney and (4) overlapping figures. In the first three tasks, it was necessary to take into…

This essay, the concluding section of a larger study, examines the present state of cognitive science and instructional theory as reflected in the study's earlier chapters. Cognitive analyses of tasks are reported in the broad domain of language comprehension and production (e.g., understanding, composing, and answering questions about texts). The…

The learning machine described in this paper acquires concepts representable as conjunctive forms of the predicate calculus and behaviors representable as productions (antecedent-consequent pairs of such conjunctive forms): these concepts and behavior rules are inferred from sequentially presented pairs of examples by an algorithm that is probably…

This paper analyzes a typical school spelling task in terms of an information processing model of spelling performance. Based on principles embodied in a computer simulation program previously reported (SPEL by Simon and Simon) the model proposed here has been expanded to try to account for many more kinds of student error than were possible with…

Several concepts and techniques used to design computer simulation of human performance were employed in developing an information processing approach to task analysis. This new approach is compared and contrasted with Gagne's hierarchical task analysis model. Two conceptual levels of a behavioral objective are identified. One level, referred to…

Two experiments were conducted to investigate the relationships between individual difference variables and discovery vs. non-discovery instructional treatments in learning of an imaginary science. All subjects were able to learn the material, but presentation of examples and rules (non-discovery) led to more rapid learning. There was no…

A combination of information integration methodology and measures of retention was used to investigate how subjects differentially attend to and weight information in judgmental tasks. Subjects were shown sets of test scores for hypothetical students and were asked to rate the performance of each student or predict each student's performance on a…

College students learned artificial grammar under two conditions: paired associate learning (PA), and observation of exemplars (OBS). OBS induced abstract representation of the rules of grammar. PA produced very different learning--subjects knew some whole items but detected little structure. Grammar was learned largely by analogy rather than…

Issues such as the utility of standardized assessment instruments in the assessment of severely handicapped infants and preschool children are considered. A model is proposed for analyzing underlying cognitive requirements of assessment tasks and for using results of such an analysis for program planning. (Author/DB)

This study examined whether the item response curves from a two-parameter model reflected characteristics of the mathematics items, each of which required unique cognitive tasks. A computer program performed error analysis of test performance. Cognitive subtasks appeared to influence the slopes and difficulties of item response curves. (GDC)

Describes four experiments conducted among adults and 3- to 7-year-olds to validate a task analysis that indicates that the equality, group enhancement, and superiority social decisions require a greater information processing load than the altruism, rivalry, and individualism social decisions. (HOD)

Cognitive activity of children from 1.5 to 5 years of age participating in problem solving and in spontaneous play was analyzed in terms of the successive coordination of existing patterns and the incorporation of new mental components. Analysis identified a series of developmental levels. (Author/RH)

The task classification scheme suggests that motor skills be categorized as the processing demands placed on a learner, feedback availability, and pacing conditions. Potential learning strategies were identified and defined in relation to the classification scheme. (JN)

A theory is proposed of the processes which enable a subject to learn while solving a problem. One subject's protocol--including 224 steps and taking 90 minutes--is described. Adequacy of the mechanisms is guaranteed by a computer simulation of the processes in an adaptive production system. (Author/GDC)

Separate experiments focusing on attention to multiple stimuli, psychological refractory period, and motor coordination demonstrated that emergent aspects of the whole situation must also be considered. Performance under divided attention reflected an interaction between resource limitation, single task processes, and emergent aspects of the whole…