Investigations used to determine the heritability of intelligence. By comparing the IQ score correlations of different sibling pairs, such as identical twins raised together versus apart, researchers can identify genetic components.

Twin Studies in Intelligence Research

The degree to which intelligence is inherited from a person's parents. Scientists typically use twin studies to determine this heritability, revealing a genetic component to intelligence.

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The development of high intelligence is believed to be influenced by a combination of genetic traits inherited from parents and a child's developmental environment.

Origins of Intelligence

Spielman, R. M., Jenkins, W. J., & Lovett, M. D. (2020, April 22). Psychology (2nd ed.). OpenStax. https://openstax.org/books/psychology-2e/pages/1-introduction

OpenStax Psychology (2nd ed.) Textbook

Heritability of Intelligence

The perspective that intelligence is shaped by a child’s developmental environment. Providing children with intellectual stimuli, even before birth, can allow them to absorb benefits that are reflected in their intelligence levels.

Environmental Influences on Intelligence

Which of the following statements is true?

- Poverty always affects whether individuals are able to reach their full intellectual potential.
- An individual’s intelligence is determined solely by the intelligence levels of his siblings.
- The environment in which an individual is raised is the strongest predictor of her future intelligence.
- There are many factors working together to influence an individual’s intelligence level.

The correct statement is that there are many factors working together to influence an individual’s intelligence level.

Question: Influences on Intelligence

Which of the following statements is true regarding the development of intelligence?

A) Poverty always affects whether individuals are able to reach their full intellectual potential.
B) An individual’s intelligence is determined solely by the intelligence levels of his siblings.
C) The environment in which an individual is raised is the strongest predictor of her future intelligence.
D) There are many factors working together to influence an individual’s intelligence level.

**Answer:** D

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