A well-known asymmetry exists in the bilingual masked priming literature in which lexical decision is used: namely, masked primes in the dominant language (L1) facilitate decision times on targets in the less dominant language (L2), but not vice versa. In semantic categorization, on the other hand, priming is symmetrical. In Experiments 1-3 we…

Poorer performance in conditions involving task repetition within blocks of mixed tasks relative to task repetition within blocks of single task is called mixing cost (MC). In 2 experiments exploring 2 hypotheses regarding the origins of MC, participants either switched between cued shape and color tasks, or they performed them as single tasks.…

Toddlers' symbolic understanding of iconic models was assessed through 2 comprehension-based tasks: 1 based on looking and 1 requiring manual selection of the target object. Toddlers received either iconic models or photographs of models as the symbolic referent. Overall, 18-month-olds performed poorly, and both 22- and 26-month-olds performed…

This article proposes a theory- and practice-based model for adapting physical activities. The ecological frame of reference includes Dynamic and Action System Theory, World Health Organization International Classification of Function and Disability, and Adaptation Theory. A systematic model is presented addressing (a) the task objective, (b) task…

Differences in performance with various stimulus-response mappings are among the most prevalent findings for binary choice reaction tasks. The authors show that perceptual or conceptual similarity is not necessary to obtain mapping effects; a type of structural similarity is sufficient. Specifically, stimulus and response alternatives are coded as…

Though cognitive science has given psychology a new, more detailed and specific way of expressing models of cognition, correspondingly detailed and precise arguments analyzing and supporting those models have not been forthcoming. Consequently, the new models often fail to meet the traditional criteria of scientific theories. Tools are available…

Six models for setting priorities are presented in a workbook format with exercises for evaluating or practicing five techniques. In the San Mateo model one sets priorities, clarifies priority purpose, lists items, determines criteria, lists items and criteria on a rating sheet, studies all information on items, rates each item, tallies results,…

Conceptual and methodological problems inherent in Aptitude Treatment Interaction (ATI) research, coupled with the impracticality of its application, call into question its use as a design model. For these reasons, ATI should be de-emphasized as an instructional design model and attention should be refocused on the structure of content and the…

This paper presents a neo-Piagetian model for examining the development of early communication and language skills; discusses its origins in the current developmental literature, and provides a brief overview of a preliminary version of 12 scales developed for assessing communicative development based on the model. The model attempts to provide a…

The 4-H intern report organizes concepts and materials to aid the extension worker in his role as coordinator and trainer of 4-H volunteer staff. A 10-item task analysis of the extension worker--4-H and youth--as volunteer leader coordinator is presented. The importance of managing a volunteer staff is touched upon, and models for job descriptions…

This study is designed to develop a checklist of teacher competencies (TECOMP I) based on an analysis of teaching tasks in keeping with a cybernetic model, to secure and analyze critical responses to the checklist items, to relate these judgments to the characteristics of the several items, and to clarify issues regarding the construction and…

Five information processing models that relate memory for evidence to judgments based on the evidence are identified in the current social cognition literature: independent processing, availability, biased retrieval, biased encoding, and incongruity-biased encoding. A distinction between two types of judgment tasks is introduced and is related to…

The paper describes an instructional material evaluation model that is based on R. Mager's approach to task analysis and may be applied to the selection of materials for learning disabled children. Procedures for listing specific objectives are reviewed, and steps for using the model to evaluate materials are presented. (SBH)

Task analysis provides a means of effectively incorporating current learning theory and practice into instructional development methodology. It yields results applicable to specifying performance objectives, designing instructional activities, determining teaching strategies, and evaluating performance. (Author/BP)