The results of more than seventy years of investigation, by factor analysis, of the varieties of cognitive abilities, are described with particular attention to
Research on human cognitive abilities has a long history in psychology and education, and has been widely applied to practical problems in schools, clinics, and
This volume brings together many of the leading researchers on human intelligence and cognition to address issues including definition, measurement, and instruc
This book surveys and summarizes the results of more than seventy years of investigation, by factor analysis, of a variety of cognitive abilities, with particul
Nations can vary greatly in their wealth, democratic rights and the wellbeing of their citizens. These gaps are often obvious, and by studying the flow of immig