The treatment of Attention Deficit Hyperactivity Disorder is a matter of ongoing research and debate, with considerable data supporting both psychopharmacological and behavioral approaches. Researchers continue to search for new interventions to be used in conjunction with or in place of the more traditional approaches. These interventions run the…

The design and use of a chemistry practice exam instrument that includes a measure for student mental effort is described in this paper. Use of such an instrument can beneficial to chemistry students and chemistry educators as well as chemical education researchers from both a content and cognitive science perspective. The method for calculating…

Little is known about the academic processing speed (i.e., rapid automatic naming and academic fluency) of children and adolescents with emotional and behavioral disorders (EBD) served in public school settings. A cross-sectional design was used to investigate the (a) percentage of K-12 students with EBD served in public school settings with…

This paper reports on a study on the relationship between cognitive task complexity and linguistic performance in L2 writing. In the study, two models proposed to explain the influence of cognitive task complexity on linguistic performance in L2 are tested and compared: Skehan and Foster's Limited Attentional Capacity Model (Skehan, 1998; Skehan…

Two word/nonword decision experiments were carried out to investigate differences in reading between congenitally blind children reading Braille and sighted children dealing with print. Three aspects of single-word recognition were studied: semantic processing, word frequency effects, and phonological recoding. (Author/RH)

Mentions some major features of proposed paradigm shifts and suggests theories, models, and techniques that could replace the assumptions of our earlier generation of comparative educationists. (BRR)

Compares monocular depth perception with binocular depth perception in five- to seven-month-old infants. Reaching preferences (dependent measure) observed in the monocular condition indicated sensitivity to monocular depth information. Binocular viewing resulted in a far more consistent tendency to reach for the nearer object. (Author)

Etiology-specific profiles of intellectual abilities were compared in 30 males (ages 6-12) with fragile X syndrome, Down's syndrome, or nonspecific mental retardation using the Kaufman Assessment Battery for Children. All three groups scored lower on sequential processing than on simultaneous processing or achievement, and etiology-specific…

Second-grade children were explicitly supplied with zero, one, two, or three components of information to specify the respective contributions of various sources and amounts of acquired strategy-utility information. Metacognitive knowledge was evidenced only when the training regiment included the complete set of critical metacognitive components.…

A stages-of-learning model was used to examine effects of picture-word manipulation on storage and retrieval differences between disabled and nondisabled grade 2 and 6 children. Results showed that disabled students are poorer at memory tasks and in developing the ability to reliably retrieve information than nondisabled children. (Author/RH)

Comparison of the written stories of 96 learning-disabled and 96 non-learning-disabled students found significant differences at grades 3, 4, and 5 in students' inclusion of a complete story grammar. No differences were found at grade 6. (Author/DB)

This paper discusses a model of information storage and retrieval, the k-d tree (Bentley, 1975), a binary, hierarchical tree with multiple associate terms, which has been explored in computer research, and it is suggested that this model could be useful for describing human cognition. Included are two models of human long-term memory--networks and…

One hundred students (ages 6-8) described similarities and differences among exemplars of different categories, identified the categories, and named the exemplars. Large performance differences were found between normally achieving and mildly retarded groups and between mildly retarded and learning-disabled groups, with small performance…

The relationship between juvenile delinquency and learning disabilities has been studied in the context of socioeconomic status, temperament, school success, and peer relationships. To use a process-oriented approach in evaluating cognitive and learning profiles of delinquents and learning disabled adolescents, and to examine the possibility that…

Presents results from an Australian study examining whether children who use cognitive strategies in solving simple addition questions develop greater proficiency in addition than children who do not use such strategies. Describes the subjects, instruments, procedure, and instructional treatment. Concludes that the development of cognitive…