Dr Wickersham Wants to Examine How Light Affects Participants' Performance

question 57

Multiple Choice

Dr. Wickersham wants to examine how light affects participants' performance on a counting task. So she has two groups, one that works under dim light, and one that works under bright lights. She finds that those in the dim-light condition perform better. However, one of her research assistants admits that he gave those in the dim-light condition extra time to complete the task. Now Dr. Wickersham is not sure whether those in the dim-light condition did better because of the lighting or because of the extra time they received. The extra time on the test is an example of a(n) :

• A)independent variable.
• B)dependent variable.
• C)criterion variable.
• D)extraneous variable.

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Definitions:

Days In Inventory

A financial ratio that indicates the average number of days a company holds inventory before selling it.

Inventory Turnover

A financial metric that measures the number of times a company sells and replaces its stock of goods during a particular period.

Financial Statements

Official records that detail the financial activities and position of a business, individual, or other entity.

Marketability

The ease with which a product or service can be sold in the market.