Modafinil is a drug licensed for the treatment of narcolepsy and sleep apnea. Recently, modafinil has been reported to be used as a pharmacological cognitive enhancer by healthy individuals with no psychiatric disorders. This paper reports on a study that investigated the effects of modafinil on divergent and convergent thinking tasks of…

In this study, students' understanding of chemical changes was investigated in relation to four individual differences, related to logical thinking, field dependence/independence, convergence and divergence thinking. The study took place in Greece with the participation of students (n = 374) from three grades (8th, 10th and 12th grades) of…

Introduction: The main objective of this study is (a) to investigate whether cognitive styles and working memory capacity could predict mathematical performance and which variable is relatively most important in predicting mathematical performance and b) to explore whether cognitive styles and working memory capacity could predict mathematical…

The purpose of this study was to determine whether faculty members with cognitive styles that match the cognitive styles of their department chairpersons are more effective than faculty members whose cognitive styles do not match that of their department chairpersons. Additionally, this study investigated the relationship between faculty members'…

The extent to which the Group Embedded Figures Test (GEFT) measures aspects of personality and cognitive impairment was explored in 81 male alcoholics receiving treatment for alcoholism. Results suggest GEFT may be more a measure of cognitive impairment than personality. Alternative explanations are explored. (Author/RL)

Tests of 172 fourth grade students in Zaria, Nigeria, supported the hypotheses that non-Western subjects' difficulties in judging depth in linear pictures are a function of individual perceptual organization, and that training could improve field independence and depth perception. Discusses child-rearing practices that may increase field…