If We Have Conducted Random Selection Accurately, We Would Be

question 54

Multiple Choice

If we have conducted random selection accurately, we would be fairly confident that:

• A) there are equal numbers in subject groups.
• B) the independent variable has been operationally defined.
• C) the sample of subjects reflects the population that we are studying.
• D) confounding variables have increased in our experiment.

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Definitions:

Return on Investment

A performance measure used to evaluate the efficiency or profitability of an investment or compare the efficiency of several different investments.

Variable Costs

Variable costs are expenses that change in proportion to the activity of a business, such as sales volumes.

Controllable Fixed Costs

Expenses that do not change with production level but can be altered or managed by decisions at the management level.

Average Operating Assets

The average value of the assets that are used in the day-to-day operations of a business, calculated over a specific period.