Final answer:
Before Sternberg's triarchic theory, psychologists debated primarily over the nature versus nurture aspects of intelligence, with discussions around genetic determinism and environmental influences. Jensen's research ignited controversy by suggesting racial differences in intelligence, and twin studies showed a genetic component.
Step-by-step explanation:
Before Robert Sternberg introduced his triarchic theory of intelligence, researchers in the field of psychology were debating over the origins and influences of intelligence. The debate largely centered on the nature versus nurture controversy, with some arguing that genetics was the primary determinant of intelligence, while others believed that the environment played a critical role. Arthur Jensen's controversial research suggested a genetic basis for intelligence and posited that there were ethnic differences in certain cognitive abilities, sparking considerable debate. Additionally, twin studies, such as the Minnesota Study of Twins Reared Apart, furthered the discussion by providing evidence of a genetic component to intelligence. However, the exact contribution of genetics and environment has remained a complex issue within the study of psychology.
Sternberg's theory posits that intelligence is comprised of three facets: practical, creative, and analytical. This multifaceted approach diverged from earlier theories, such as Charles Spearman's general intelligence factor (g), and added a new dimension to the understanding of intelligence. Sternberg argued that practical intelligence is akin to "street smarts," and this, along with the other types of intelligence, may or may not correspond with traditional IQ measures.