A study investigated variables that differentiated 75 successful and 76 unsuccessful students (ages 6-16) with serious emotional disturbances (SED). Four variables emerged as significant predictors of the unsuccessful outcome group: increasing enrollment age, presence of conduct or opposition disorder, lower verbal IQ, and absence of depressive or…

A 3-factor solution of the Wechsler Adult Intelligence Scale--Revised (WAIS-R) in 260 adults with suspected head injury suggested relatively good construct validity for the factors, based on correlations with neuropsychological tests. Findings are discussed in terms of the multidimensional nature of neuropsychological tests and WAIS-R factors.…

Collected data on twins' performance on 13 cognitive variables measured three times at three-year intervals. Twins were monozygotic or dizygotic pairs reared together or apart and were in six cohorts ranging in age from 41 through 84 years. Found stable mean cognitive performance across time on eight measures for the younger cohorts, and…

Performance of 142 sixth graders in modular technology education using multimedia was significantly predicted by quantitative and verbal ability and prior knowledge. Cognitive style and intrinsic motivation had less significant relationships with performance. Identification of low verbal ability and lack of prior knowledge could improve students'…

Examined age and gender differences in verbal skills and visuomotor skills at kindergarten, in achievement in reading and mathematics at Grade four, and the link between skills at kindergarten and later achievement. Readiness in auditory memory and verbal associations predicted later reading achievement while readiness in number skills and visual…

This longitudinal study of 1,075 school children from pre-kindergarten through grades 7 or 8 identified children with persistent disabilities in either reading (6.6 percent), arithmetic (2.3 percent), or both reading and arithmetic disabilities (3.4 percent). Comparison of groups found the specific arithmetic group was superior on preschool verbal…

Single-task and dual-task versions of verbal and spatial serial order memory tasks were administered to 120 students tested for working memory capacity with four previously validated measures. In the dual-task versions, similarity between the memory material and the material of the secondary processing task was varied. With verbal material, three…

"The Alex Studies: Cognitive and Communicative Abilities of Grey Parrots" by Irene Pepperberg is reviewed from a behavior analytic orientation. The results of the majority of her experiments are discussed in terms drawn from the general literature of behavior analysis and Skinner's analysis of verbal behavior. We conclude that she has provided…

Two studies of second graders at risk for reading disability, which were guided by levels of language and functional reading system theory, focused on reading comprehension in this population. In Study 1 (n = 96), confirmatory factor analysis of five comprehension measures loaded on one factor in both fall and spring of second grade. Phonological…

Aims: Cognitive therapies are increasingly being offered by clinical psychologists to people with intellectual disabilities. This paper reviews some of the factors that influence people's readiness to engage in cognitive therapy. Literature review: Limited verbal ability, psychological-mindedness (particularly in relation to the understanding of…

Two studies were conducted to explore mathematical precocity in young children. Study 1 examined mathematically gifted first and third graders' working memory development. The results showed that mathematically gifted children's working memory growth was similar to that expected of their age peers. Study 2 examined changes in mathematically gifted…

In 1996, Florida's Miami-Dade Community College conducted a study to examine the college preparatory completion rates of first-time degree-seeking students based on their verbal and mathematics entry-level placement scores. Results include the following: (1) fewer than 30% of students scoring at the lowest level on the mathematics placement test…

Although sex differences in research have received considerable attention, few researchers have examined the bias, social context, and process of that research. In analyzing sex differences in academic achievement over the past 10 years, three areas (mathematics, spatial ability, and verbal ability) would appear to establish consistent sex…

The relationship between students' relative ability in visual-spatial tasks as well as their verbal and numerical skills to their performance in an introductory college chemistry course was investigated. For 700 subjects, verbal and mathematics Scholastic Aptitude Test scores (SAT-V) and (SAT-M) and the following four perceptual tests were…