The Only Control Technique That Can Account for Both Known

question 53

Multiple Choice

The only control technique that can account for both known and unknown sources of extraneous variation ise.g., within designs require fewer participants, offer better control, but also may demand too much participant time and offer clues to the researcher's hypothesis) .

• A) precision control.
• B) matching by yoked control.
• C) random selection.
• D) random assignment.

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Definitions:

Expenses

Costs incurred by a business in the process of earning revenues.