Ap module 60
Learning Targets
60-1: Discuss how psychologists define intelligence, and present arguments for general intelligence (g).
60-2: Compare Gardner's and Sternberg's theories of multiple intelligences, discussing criticisms.
60-3: Describe the four components of emotional intelligence.
Intelligence Definition and g Factor
Intelligence is the ability to learn from experience, solve problems, and use knowledge to adapt to new situations. Charles Spearman proposed general intelligence (g), indicating a basic intelligence underlying all mental abilities, evidenced by his factor analysis results showing correlations in intelligence test scores.
Critiques of General Intelligence
L. L. Thurstone opposed the g factor, identifying seven independent mental abilities. Despite his findings, subsequent research indicated a correlation, suggesting some basis for Spearman's g. Mental abilities can resemble physical abilities; despite distinct features, they may show tendencies to cluster.
Theories of Multiple Intelligences
Howard Gardner's Multiple Intelligences
Gardner proposed eight (later nine) independent intelligences, acknowledging various domains beyond traditional academic smarts. Each intelligence operates individually, influenced by cultural context.
Robert Sternberg’s Triarchic Theory
Sternberg suggested three intelligences:
Analytical (problem-solving)
Creative (innovation)
Practical (day-to-day tasks)
Both Gardner and Sternberg emphasized the importance of diverse intelligences in real-world application despite criticisms regarding the lack of empirical support for their theories.
Emotional Intelligence Components
Emotional intelligence includes:
Perceiving emotions
Understanding emotions
Managing emotions
Using emotions for adaptive thinking
Emotionally intelligent individuals can navigate social situations effectively and cope with their own and others' emotions.
Stability of Intelligence through Life
Intelligence test stability increases with age; rates drop after age 85. Crystallized intelligence (knowledge and verbal skills) tends to increase with age, while fluid intelligence (reasoning and abstract thinking) usually declines. These findings indicate that society values different intelligences at various life stages.
The Influence of Genetics and Environment on Intelligence
Genetic Evidence
Twin studies show intelligence has a high heritable factor, with estimates of 50-80% for genetic influence on intelligence. Intelligence is influenced by multiple genes, reflecting the polygenetic nature of the trait.
Environmental Evidence
Environmental conditions greatly affect intelligence, particularly during childhood. Children from disadvantaged backgrounds can show significant improvement through enriched educational experiences. Early interventions and quality education can positively impact cognitive development.
Group Differences in Intelligence
Gender Differences
Research indicates few average differences in intelligence between genders. Males tend to excel in spatial and mathematical reasoning, while females perform better in verbal tasks. However, variability among males is greater.
Racial and Ethnic Differences
Average intelligence scores differ among racial and ethnic groups, influenced largely by environmental factors rather than genetics. Historical context, socioeconomics, and cultural experiences contribute to these disparities. The Flynn effect demonstrates that population performance can improve over generations due to environmental changes in education and nutrition.
Bias in Intelligence Testing
The debate continues about whether intelligence tests contain cultural biases. While they may predict future behavior similarly across groups, performance discrepancies can stem from cultural differences. Stereotype threat may also adversely affect test performance for minority groups.
Conclusion
Intelligence is a multifaceted construct influenced by both genetics and environment. The pursuit for equitable assessment and understanding of intelligence continues to evolve, with ongoing debates surrounding tests' validity and appropriateness across diverse populations.