Research on Children's Exposure to Language in Their Environment Indicates

question 45

Multiple Choice

Research on children's exposure to language in their environment indicates that:

• A) the effect of social economic status on children's language development is consistent throughout their development.
• B) the amount of speech a child hears influences the rate of their vocabulary development.
• C) birth order makes little difference in the rate of the child's growth in vocabulary knowledge.
• D) education of the mother has minimal influence on the rate of the child's growth in vocabulary knowledge.

---

Definitions:

Standard Deviation

An indicator of the range or spread of a group of numbers.

Mean

The average of a set of numbers, calculated by adding all values together and dividing by the number of values, a central measure of location in statistics.

Continuous Random Variable

A random variable that can take any value in a continuum or uncountable range.

P(x > a)

The probability that a random variable x will take a value greater than a specified number a.