Presents remarks on constructivism that are based on a discussion in an earlier issue. Topics addressed include the role of theory in the instructional design process; the construction of knowledge; differences between objectivists and constructivists; knowledge representation; entry behaviors and task analysis; and instructional systems…

Go/no-go tasks seem to provide a simple marker of inhibitory development in young children. Children are told to respond to one stimulus on go trials but to make no response to another stimulus on no-go trials; responding on no-go trials is assumed to reflect a failure to inhibit the go response. However, there is evidence to suggest that a type…

The authors tested the hypothesis that with adequate practice, people can execute 2 cognitive operations in working memory simultaneously. In Experiment 1, 6 students practiced updating 2 items in working memory through 2 sequences of operations (1 numerical, 1 spatial). In different blocks, imperative stimuli for the 2 sequences of operations…

Simon effects might partly reflect stimulus-triggered response activation. According to the response-discrimination hypothesis, however, stimulus-triggered response activation shows up in Simon effects only when stimulus locations match the top-down selected spatial codes used to discriminate between alternative responses. Five experiments support…

The paper is a reflective account of the design and implementation of mathematical tasks that evoke uncertainty for the learner. Three types of uncertainty associated with mathematical tasks are discussed and illustrated: "competing claims," "unknown path or questionable conclusion," and "non-readily verifiable outcomes." One task is presented in…

Learning a new skill, even a seemingly simple one, can be an overwhelming task for a beginner. A question often faced by the practitioner as a result is whether or not to break the skill into parts for initial practice. Skill complexity and skill organization interact to provide direction as to whether whole or part practice should be employed in…

Language samples elicited through a picture description task were recorded from 38 adolescents and adults with Williams syndrome (WS) and one control group matched on age, and another matched on age, IQ, and vocabulary knowledge. The samples were coded for use of various types of inferences, dramatic devices, and verbal fillers; acoustic analyses…

Two experiments examined whether text composition engages verbal, visual, and spatial working memory to different degrees. In Experiment 1, undergraduate students composed by longhand a persuasive text while performing a verbal, visual, or spatial concurrent task that was presented visually. In Experiment 2, participants performed a verbal or…

Many students identified with emotional or behavioral disorders have social skill deficits, often displayed as less mature or inappropriate social behavior. Students may have difficulty engaging in appropriate play or social interactions and may at times become aggressive. The inability to interact with others has a negative impact on academic…

Recent psychological and neuropsychological research suggests that executive functions--the cognitive control processes that regulate thought and action--are multifaceted and that different types of executive functions are correlated but separable. The present multivariate twin study of 3 executive functions (inhibiting dominant responses,…

This study draws on sociocultural theory to explore how adult ESL learners interact with either a higher- or a lower-proficiency peer during pair problem solving, and how they each perceive the interactions with their partners. Three ESL learners engaged in a three-stage task: pair writing; pair noticing; and individual writing with two learners,…

This study examined the relative contributions of emotion knowledge and teacher-child relational variables to school competence. Seventy-four economically and ethnically diverse preschoolers (40 boys, 34 girls) completed an emotion knowledge task and a standardized school competence measure. Classroom teachers and their assistants rated the…

The authors tested the hypothesis that a match between the gender relevance of a stressor and one's sex or gender role identification would elicit higher cardiovascular responses. Healthy female and male undergraduates (n = 108) were exposed to two stressors: the Cold Pressor Test (CPT) and the n-back task. Stressor relevance was manipulated to be…

Drawing on the psycholinguistic rationale and empirical research on output (e.g., [Izumi, S., 2002. "Output, input enhancement, and the noticing hypothesis: An experimental study on ESL relativization." "Studies in Second Language Acquisition" 24, 541-577; Izumi, S., Bigelow, M., 2000. "Does output promote noticing and second language…

This classroom-based study investigated the metatalk of learners working in pairs on a text reconstruction task. Specifically, the study investigated the learners' level of engagement with linguistic choices, and whether the level of engagement affected subsequent language development. Data were collected over a 2-week period. In the first week,…