This study trained children to master logical fallacies and examined how learning is related to processing efficiency and fluid intelligence (gf). A total of one hundred and eighty 8- and 11-year-old children living in Cyprus were allocated to a control, a limited (LI), and a full instruction (FI) group. The LI group learned the notion of logical…

Two studies determined the extent to which feedback could improve eighth graders' and adults' decision-making. Results showed that neither benefited from verbal feedback in choosing between easy and hard questions to earn points. Adults benefited more than adolescents from outcome feedback. Adults also benefited more than adolescents in context of…

It was concluded that while retinoblastoma per se is not associated with intellectual superiority or inferiority, retinoblastoma associated with blindness may result in selective cognitive superiority. (Authors)

The verbal, performance, and full-scale IQs of the standardization sample for the Wechsler Intelligence Scale for Children--Revised (WISC-R) were analyzed according to sex, race, geographic region, parental occupation, and type of residence (urban or rural) and compared with corresponding data from a 1950 study of the WISC standardization sample.…

A study of effects of age and schooling in grades five and six on raw scores from a variety of general ability tests found that schooling: (1) is the major factor underlying the increase of intelligence test scores as a function of age; and (2) has a larger effect on verbal than nonverbal tests. (RH)

Assessed attachment/indiscriminate friendliness in children who spent at least eight months in Romanian orphanages (RO); a nonadopted, never-institutionalized Canadian group; and an early-adopted Romanian group. Found that RO children showed more insecure attachment and indiscriminate friendliness than others. Insecure RO children had more…