The Single Most Important Factor in Growth of Vocabulary Is

question 16

Multiple Choice

The single most important factor in growth of vocabulary is the child's language environment. Children have larger vocabularies when they are exposed to much high-quality language. The more words that children hear, the better. Specifically, children learn more words when their parents' speech is rich in different words and is grammatically sophisticated and when parents respond promptly and appropriately to their children's talk. -adapted from Kail and Cavanaugh, Human Development: A Life-Span View , p. 165
What key word signals to the reader that a supporting detail is going to follow?

• A)important
• B)sophisticated
• C)larger
• D)specifically

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Definitions:

Heritability

A measure of how much of the variation in a trait among individuals within a population can be attributed to genetic differences.

Dizygotic Impact

Refers to the effect or influence of being born as dizygotic twins, that is, twins developed from two different eggs fertilized by two different sperm.

Epigenetic Marks

Chemical modifications to DNA that do not change the DNA sequence but can affect gene activity and expression.

Personality Traits

Innate characteristics that influence an individual's patterns of thought, emotion, and behavior.