The Experiments with the Visual Cliff Suggest That Infants Begin

question 135

Multiple Choice

The experiments with the visual cliff suggest that infants begin to discriminate depth:

• A) between two and four months of age.
• B) between three and five months of age.
• C) as soon as they begin crawling.
• D) as soon as they can sit up and balance.

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Definitions:

Fixed Costs

Costs that do not change with the level of production or sales, such as rent, salaries, and insurance premiums.

Marginal Costs

The increase in total cost that arises from producing one additional unit of a good or service.

Output

The amount of goods or services produced by a company, industry, or economy within a certain period.

Variable Costs

Costs that vary directly with the level of output, such as raw materials and direct labor expenses.