Objective/Method: The Conner's Continuous Performance Test (CPT) was administered to four groups of adult college students who self-referred for comprehensive psychoeducational evaluation and received either no diagnosis (n = 30) or a diagnosis of ADHD (n = 26), a psychiatric disorder (n = 17), or various cognitive deficits (n = 22). Results: The…

This study examined irrelevant/incorrect answers produced by children with Asperger syndrome or high-functioning autism (7-9-year-olds and 10-12-year-olds) and normally developing children (7-9-year-olds). The errors produced were divided into three types: in Type 1, the child answered the original question incorrectly, in Type 2, the child gave a…

In this article we examine language processing and development in Catalan or Spanish-speaking children with SLI, focusing on the study of the verb. We analyse the key initial phase of its process of acquisition and aim to define common features of the SLI group that distinguish them from children with normal language development. We intend to…

Psycholinguistic research has shown that the influence of abstract syntactic knowledge on performance is shaped by particular sentences that have been experienced. To explore this idea, the authors applied a connectionist model of sentence production to the development and use of abstract syntax. The model makes use of (a) error-based learning to…

The purpose of this study was to analyze the errors made by high school students in practical biology and the extent to which boys and girls differ in terms of the frequency of errors committed. The subjects included 317 students from the twelfth grade sampled from five different schools in Nigeria. A criterion level of 0.05 was set to test the…

A study sought to find the most common errors of second grade story-writers. Subjects, 96 second graders from 5 classes, wrote 3 stories each without any help from their teachers on topics chosen by the teachers ("The Funniest Thing that Ever Happened to Me,""Winter," and "My Special Holiday"). Stories were collected…

On discrimination learning trials which allowed subjects to press an information key when in doubt, retarded children made significantly more presses than control groups. Results confirmed the hypothesis that retarded children would be more outerdirected than normal children in a situation in which distractibility could not play a role. (Author/GO)

The primary reason for good spellers' inability to find spelling errors while proofreading might involve the perceptual factor in reading. (BP)

The rank transformation approach to analysis of variance (ANOVA) as a solution to the Behrens-Fisher problem was examined. Using simulation methodology, four parameters were manipulated for the two-group design: (1) ratio of population variances; (2) distribution form; (3) sample size; and (4) population mean difference. As a general solution to…

The purpose of the study was to determine whether students had knowledge of the extension rule (the conjunction of two or more events cannot be greater than the probability of any one of those events) and understanding of conjunction by giving a test of multiplicative probabilities. Involved were 598 students enrolled in introductory psychology…

Computer usage by preschool children differing in cognitive tempo was explored. Cognitive tempo refers to a child's tendency to respond slowly or rapidly in a problem-solving situation which has high uncertainty. The Kansas Reflection-Impulsivity Scale for Preschoolers (KRISP) was administered to 13 children enrolled in a prekindergarten class at…

Describes two experiments which investigated the use of distinctive feature codes in the storage of phonetic encoding information by 6- and 7-year-olds during short term memory tasks. A total of 106 children were presented with 30 lists of consonant-vowel syllables for recall. Data indicate that children encode the consonantal phones into sets of…

Writing samples of 50 learning disabled college students were analyzed for fluency and errors of 14 types: omission of words and/or letters, noun plurals, syntax, subject-verb agreement, verb forms and tense, pronoun reference, shifts in person, fused or spliced sentences, fragments, punctuation, capitalization, usage, spelling, and apostrophe…

An index measuring the degree to which a binary response pattern conforms to some baseline pattern was defined and named the Pattern Conformity Index (PCI). One way of conceptualizing what the PCI measures is the extent to which each individual's particular response pattern contributes to, or detracts from, the overall consistency found in the…

A study examined the error rate of the "University of California Union Catalog Supplement," a 47 volume, computer produced book catalog of the materials cataloged by the nine University of California campuses during the years 1963-67. The study attempted not only to determine the rate and nature of errors, but also to develop a…