INTELLIGENCE

Factors Affecting Intelligence and Test Scores

Impact of Environment on Intelligence

  • Books and Resources in the Home

    • Access to educational resources, such as books, plays a significant role in cognitive development.

  • Access to Quality Education

    • Children with limited access to good schools show an increase in IQ when they eventually gain access. This is a measurable change.

  • Cultural Influences on Testing

    • Cultural differences can adversely impact test scores.

    • Early intelligence tests were often biased towards Western culture, not accounting for cultural phrases and concepts unfamiliar to test-takers from different backgrounds.

    • Approximately, American students benefit from familiarity with standardized tests due to increased exposure over time, resulting in a gradual advantage in scores.

Factors Lowering Test Scores

  • Stress and Test Performance

    • High stress can significantly affect performance on intelligence tests.

  • Lack of Reading Experience

    • A direct correlation exists where higher reading experience leads to improved intelligence test scores.

  • Test Preparation

    • Although it is believed that one cannot practice for intelligence tests, preparation and practice can lead to improved scores.

    • Example: GRE (Graduate Record Examination) serves as a critical test for graduate school admissions.

    • Personal anecdote: Studying intensely improved the score on the analytical section of the GRE, suggesting it is indeed possible to 'study' for what is perceived to be a measure of general intellectual ability.

  • Medical and Health Factors

    • Medication can hinder cognitive performance, and health issues can also negatively impact intelligence test performance.

  • Motivation Levels

    • Lack of motivation affects individuals' willingness to engage with the testing material.

  • Environmental Stressors

    • Conditions such as fatigue and hunger can deteriorate test performance, explaining the importance of providing snacks (e.g., granola bars) in testing environments.

The Relationship Between IQ and Opportunity

  • Genetics vs. Environment

    • Questions arise regarding how to treat intelligence when recognizing the strong genetic component.

    • Opportunities for enhancing intelligence vary during different life stages, influenced by environmental factors.

  • Takeaway

    • Environmental factors have shown potential to positively influence intelligence.

Educational System Variability

  • Differences by Region/State

    • Varied quality of education systems across different states leads to significant disparities in student outcomes.

    • Some areas have educational systems that are significantly underfunded, impacting nutrition and healthcare available to children. These conditions can mimic those of developing nations.

  • Improved Academic Stimulus

    • In contrast, other regions provide a highly stimulating educational environment with rigorous higher education pathways.

Gender Differences in Intelligence

  • Module 30 - Gender Similarities and Differences

    • Focus on the take-home messages, which state that there are minimal differences in intelligence between genders.

  • Context of Gender Differences

    • When gender environments equalize, observed differences tend to diminish.

    • Even if genetic differences exist in certain dimensions, they do not explain significant societal disparities, such as the underrepresentation of women in leadership roles (e.g., CEOs, scientists).

    • The swift change in gender roles and expectations occurs too rapidly for evolutionary genetics to keep pace.

Conclusion and Break

  • Reflection on Information

    • Need for a two-minute break to reflect on content discussed and recharge for continued learning.

  • Encouragement to Engage

    • Students encouraged to engage in brief physical activity or conversation during the break.