The construct validity of Boder's typology of dyslexia was investigated using quantified electroencephalography with 39 children (ages 7-11) during a reading task and at rest. Results supported beta frequency differences in anticipated regions by dyslexia subtype during the reading task. However, the direction of difference hypothesis was not…

This discussion of issues of definition and classification of attention deficit disorder (ADD) emphasizes the heterogeneity of the diagnosis, the overlap of ADD with reading disability, and lack of consistency across studies. A systematic classification study is proposed to develop a unitary, empirically derived classification for ADD. (Author/DB)

This study investigated taxonomic clustering and use of frequency associations as features in the semantic memory of children (n=30 in grades two and six) with learning disabilities (LD). Results suggested that, when individual child-generated word lists (i.e., meaningful) are used, children with LD may not be impaired in their ability to utilize…

Freeman and Richards agree about points raised regarding the overlap among categories of teaching and classroom practice but note that the categories might contribute to the analysis and understanding of teacher education programs and practices. (Contains nine references.) (LB)

Describes six varieties of technological experts who are knowledgeable about computers and other electronic equipment used in education; considers their usefulness to educators who are not as knowledgeable; and suggests ways in which educators can work with a variety of technological experts. (LRW)

Documents the process used to construct the definition of the field of instructional technology. A chronology of the development and the key factors that influenced the construction process are described. Issues confronted, including acceptable definition characteristics and the scope and nature of the domains, are covered. (13 references) (KRN)

A scheme is introduced for classifying assessment methods by using a mapping sentence and examples of three tasks from research methodology are provided along with their profiles (structures) based on the mapping sentence. An instrument to determine student assessment preferences is presented and explored. (SLD)

The classifications of and clustering in recall of 49 44- to 81-month old predominantly white children of gender-typed indoor and outdoor toys were studied. Results are discussed in terms of gender-differing play contexts. Boys and girls show distinctively different patterns in abilities to accurately classify toys. (SLD)

A rational model of human categorization behavior is presented that assumes that categorization reflects the derivation of optimal estimates of the probability of unseen features of objects. A case is made that categorization behavior can be predicted from the structure of the environment. (SLD)

Twenty-two second grade students in Cambridge (Massachusetts) were asked to rate pictures of nature items and artifacts on a seven-point scale ranging from "maleness" to "femaleness." Responses overall showed a female-nature and male-artifact association. Discusses the role of such associations in the development of gender…

Applies a taxonomic principle to analyze the gradual elaboration of any language or sign system as a technology of communication rather than the reflection of a specialized language faculty or cluster of language faculties. (Author/CB)

Mysteries of the biological past that paleontologists are trying to solve are discussed. Topics include first seeds, fossils and computers, packrat middens, charcoal clues, soft parts, Burgess shale, halkieriids, toe count, whales with feet, long necks, and changing functions. (KR)

Discusses helping students understand cases and classes through knowledge modeling. Discusses classification and human cognition, and classification and pictorial knowledge models. Provides classroom extension activities. (SR)

Discusses the use of lists and classification in poetry throughout history. Gives examples of lists in verse from Elizabethan to modern times. Offers some basic types and functions of the "list poem." Relates the lists poems of a fourth grade class. (PRA)

Commends journalist William Raspberry for urging less testing and sorting, more cooperation, and less competition in schools. Congress, under pressure to force schools to produce results and get rewards, should heed this columnist's advice. Although school boards are resisting an AASA measure (H.R. 3320) to reform local and state education…