Arthur Robert Jensen sa zameral na individuálne rozdiely v učení, najmä na vplyvy kultúry, vývoja a genetiky na inteligenciu a učenie. Jeho práca sa sústredila na problémy s učením u študentov z kultúrne znevýhodneného prostredia. Skúmal spojenie medzi ľudským genómom a ľudskou spoločnosťou a jeho výskum významne prispel k pochopeniu tejto problematiky. Jeho prístup zdôrazňoval komplexnú interakciu medzi biologickými a environmentálnymi faktormi pri formovaní kognitívnych schopností.
The book delves into the concept of general mental ability, known as the g factor, introduced by Charles Spearman. It explores how this construct represents individual differences in mental abilities across diverse populations. Through factor analyses of extensive measures of mental skills, the g factor consistently emerges as the primary source of variation among individuals and specific subgroups, highlighting its significance in understanding cognitive differences.
The book explores critical issues surrounding cultural disadvantage, focusing on the challenges of creating unbiased psychological tests and the educational hurdles faced by minority children. It delves into the complex relationship between heritability and teachability, addressing how these factors impact learning and development in diverse cultural contexts.