Computational models of infant categorization often fail to elaborate the transitional mechanisms that allow infants to achieve adult performance. In this article, we apply a successful connectionist model of adult category learning to developmental data. The Supervised and Unsupervised Stratified Adaptive Incremental Network (SUSTAIN) model is…

Background: The Copenhagen Child Cohort, CCC 2000, was established to investigate developmental psychopathology prospectively from birth in a general population. Methods: A random sample of 211 children from the CCC 2000 was investigated when the children were 1 1/2 years of age. The prevalence and associates of mental health problems and…

Describes the reasoning patterns characteristic of the abstract thinking required for higher levels of school science. Discusses control and exclusion of variables, ratio and proportion, conservation involving models, compensation and equilibrium, correlation, probability, combinatorial thinking, coordination of frames of reference, and…

Examined the frequency and associations of multiple diagnoses in 205 psychiatric inpatients, assessing past and current episodes of illness. Over one-half of the sample received more than one diagnosis. Alcoholism, antisocial personality, and drug dependence formed one group; primary depression, primary mania, and secondary affective disorder,…

A review of research about second language learning indicates that nonprimary acquisition is sensitive to the center-periphery distinction. There is clear evidence that this construct has reflexes in interlanguage word order with respect to the probability of native word order influence, difficulty, and order of emergence. (CB)

Background: The relationship between the age of reaching infant developmental milestones and later intellectual function within the normal population remains unresolved. We hypothesised that the age of learning to stand in infancy would be associated with adult executive function and that the association would be apparent throughout the range of…

Objective: To study associations between comorbid psychopathology and long-term outcomes in a large birth cohort sample from age 8 to early adulthood. Method: The sample included long-term outcome data on 2,556 Finnish boys born in 1981. The aim was to study the impact of early childhood psychopathology types (externalizing versus internalizing…

Psychomotor performance is fundamental to human existence. It is important in many real world activities and nowadays psychomotor tests are used in several fields of industry, army, and medical sciences in employee selection. This article tries to define psychomotor activity by introducing some psychomotor theories. Furthermore the…

The purpose of this study was to investigate the differences among schools using student responses in the Trends in Mathematics and Science Study-1999 (TIMSS-99) data. Schools were classified into two groups based on eighth grade students' overall achievement in science. Two different discriminant function analyses were performed to distinguish…

Education names and classifies individuals. This result seems unavoidable. For example, some students will graduate, and some will not. Those who graduate will be "graduates"; those who do not graduate will be labeled otherwise. The only way to avoid such labeling is to fail to make distinctions of any kind. Yet education is rife with…

This research was undertaken to discover the relation among the objectives of various levels of a school district. The research was limited to the high school, school district staff, and board of education. A modification of the Delphi process was used to elicit objectives. Once the objectives were developed, they were classified by central theme…

This study examined catalog records and compared the number and type of access points with number of circulations by type of user. Although little significant correlation was found between the total number of access points and total circulation, interesting trends were found in correlations by type of subject and user. (CDD)

A study was conducted to identify types of mental operations of 4- and 5-year-olds and to relate them to the child's age and the educational level of the mother. The sample consisted of 423 white English-speaking children of American parentage, evenly divided by sex and as evenly distributed as possible over the 12-month-age range of 4 to 5 years.…

Identifying students at risk for violating alcohol policies could help college administrators minimize many problems. In this study, 154 male college freshmen [mean age 18.01 (SD = 0.50); 63% (n = 54) Caucasian], 68 of whom had been adjudicated for violating alcohol policies, completed an initial questionnaire assessing demographic characteristics…

Background: Previous empirical studies of the cognitive sequelae of failure to thrive in infancy have led to apparently inconsistent conclusions. Methods: Studies of cognitive abilities in failure to thrive were located through published bibliographies, supplemented by a search through MEDLINE. They were classified (a) into those in which the…