Chronic tic disorders are characterized by involuntary motor and vocal tics, which are influenced by contextual factors. Recent research has shown that (a) children can suppress tics for brief periods of time, (b) suppression is enhanced when programmed reinforcement is provided for tic-free intervals, and (c) short periods of suppression do not…

This study examined relations between creative thinking and performance on routine, everyday tasks. Results were considered in light of past research on the putative relation between creativity and schizophrenia/psychotic thinking. Thirty healthy undergraduates completed the Alternative Uses Task, a measure of divergent thinking, and the 2 × 3…

Introduction: Certain behaviors associated with high intellectual ability, such as inattention and early response, are often confused with attention deficit and hyperactivity disorder (ADHD), making correct diagnosis more difficult. The objective of the present study was to analyze the performance of students with high intellectual ability and…

Comparisons were made of three different procedures for rating job performance and the validity of each procedure was estimated. All three procedures were based on observation of videotaped presentations of 12 electrical measurement problems, 8 of which had errors associated with them. The three procedures involved the use of three different…

What would it take for instructional design to qualify as a bona fide applied discipline? First and foremost, a fundamental requirement is a testable and tested theoretical base. Untested rationales until verified remain in limbo. Secondly, the discipline's applied prescriptions must be demonstrably traceable to the theoretical base once it is…

There are two types of errors made in feeling-of-knowing (FOK) studies: a commission error occurs when a subject answers a question incorrectly, and an omission error occurs when a subject fails to provide an answer for a given question. A subject makes a commission error if he or she responds to the following question, "In which city does…

An experimental mock eyewitness study is reported that compared Free and reverse order recall of an empirically informed scripted crime event. Proponents of reverse order recall suggest it facilitates recovery of script incidental information and increases the total amount of information recalled. However, compared with free recall it was found to…

Objective: Response inhibition deficits are characteristic of individuals with attention-deficit/hyperactivity disorder (ADHD). Previous functional magnetic resonance imaging (fMRI) studies investigating the neural correlates of this dysfunction have used block designs, making it difficult to disentangle activation differences specifically related…

Although it has been suggested that women are less likely than men to use cardinality in dealing with environmental space, there has been no direct empirical assessment of this claim. If women are less likely than men to use cardinality, it is not clear whether women lack the competence to use a coordinate system of reference or simply prefer…

Acquisition of English grammatical morphology was examined in five internationally adopted (IA) children from China (aged 0;10-1;1 at adoption) during the first three years' exposure to English to determine whether acquisition patterns were characteristic of child second language (L2) learners or monolingual first language (L1) learners. Results…

In this book, the author candidly confronts errors he made of omission, commission, misplaced emphases, and watering down the depth and scope of his criticisms of the reform arena in his half-century involvement in educational reform. No other major figure in this arena has made public such a searching self-critique. Sharing his thoughts about the…

Objective: Gender differences among children with ADHD are not well understood. The continuous performance test (CPT) is the most frequently used direct measure of inattention and impulsivity. This meta-analysis compared CPT performance between boys and girls with and without ADHD. Method: All peer-reviewed ADHD studies published between 1980 and…

The best procedure for the diagnosis of Attention-Deficit/Hyperactivity Disorder (ADHD) remains fragmented. The diagnosis is frequently based on anecdotal information and rating scales completed by parents and teachers. A major drawback to a more objective diagnosis has been the absence of standardized test data generated by the child client. The…

The present study compared the representational drawings of children with autism, children with Down syndrome and typically developing children. Participants were asked to draw a series of objects and their depictions were scored for the incidence of intellectual realism. The tasks sought evidence of conceptual as opposed to episodic influences on…

Background: Down syndrome (DS) has been the focus of much cognitive and developmental research; however, there is a gap in knowledge regarding sustained attention, particularly across different sensory domains. This research examined the hypothesis that children with DS would demonstrate superior visual rather than auditory performance on a…