Which of the Following Is an Example of a Longitudinal

question 33

Multiple Choice

Which of the following is an example of a longitudinal design in a descriptive research project?

• A)surveys involving 600 mall intercepts in six major cities to determine the likes and dislikes of health food
• B)a variety of promotional offers displayed in stores, with each group of respondents seeing only one offer and the resulting brand sales would be monitored.
• C)a panel that consists of households that provide purchasing information at specified intervals over an extended period
• D)a cross-sectional study of the elderly held once at the end of the fiscal year
• E)all of the above

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Definitions:

Additional Contribution Margin

The increase in contribution margin generated by an additional unit of sales, reflecting the revenue minus variable costs for that unit.

Purchasing Decision

The process of evaluating and choosing from among alternatives to buy products or services that best meet the criteria of the purchaser.

Variable Production Cost

Costs that vary with the level of production output, including direct materials, direct labor, and variable manufacturing overhead.

Fixed Production Cost

Fixed production cost refers to the portion of total production costs that does not vary with the level of output, including costs like lease payments for manufacturing facilities.