. Define the term control as it is applied in research design.
What will be an ideal response?
Ans: Control in research design is (a) the manipulation of a variable and (b) holding all other variables constant. When control is low, neither criterion is met; when control is high, both criteria are met.
Learning Objective: 7-2: Explain how a gradient of control can be used to understand research design.
Cognitive Domain: Analysis
Answer Location: Categories of Research Design
Difficulty Level:Difficult
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