Stanford-Binet and Wechsler Adult Intelligence Scale (WAIS) IQs were compared for a group of 74 adults with intellectual disability (ID). In every case, WAIS Full Scale IQ was higher than the Stanford-Binet Composite IQ, with a mean difference of 16.7 points. These differences did not appear to be due to the lower minimum possible score for the…

The concept of a general intelligence factor or "g" is controversial in psychology. Although the controversy swirls at many levels, one of the most important involves "g's" identification and measurement in a group of individuals. If "g" is actually predictive of a range of intellectual performances, the factor…

Speed of information processing was examined in relation to fluid and crystallized intelligence in sixth graders. Reaction time parameters (except slope) were negatively correlated with scores on intelligence tasks. Partial correlations failed to support any causal relationship between fluid and crystallized intelligence in either direction.…

Individual differences in the ability to connect thoughts to emotions were studied with 321 participants who read the writings of a target group and guessed the emotions of targets. Findings are interpreted to mean that some forms of emotional problem solving require emotional openness as well as general intelligence. (SLD)