Random Assignment Is Used in Experiments Because Researchers Want to

question 104

Multiple Choice

Random assignment is used in experiments because researchers want to

• A) guarantee that the results will be statistically significant.
• B) ensure that people from different social classes will be in separate groups.
• C) ensure that the experimental results are not merely correlational.
• D) reduce the likelihood that the experiment's results will be due to any preexisting differences between the experimental and control groups.

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Definitions:

Direct Conversion

The process of changing one form of energy, material, or resource directly into another without intermediate stages.

Variable Overhead

Costs associated with manufacturing that fluctuate with the level of output, such as raw material costs and energy expenses directly tied to production levels.

Overhead Absorption

A method of applying a portion of a company’s indirect costs, such as electricity or rent, to individual units of production.

Machine Hour

A measure of the amount of time a machine is operated, used as a basis for allocating machine-related costs to products.