Matching of one subject with another and the use of random selection of subjects are examples of:
a. causality.
b. control.
c. manipulation.
d. nonprobability sampling.
ANS: B
Control means having the power to direct or manipulate factors to achieve a desired outcome. The researcher uses the controls of matching subjects and random selection.
Causality means that one thing leads to another.
Manipulation is not a form of control, but creates the control through the intervention or treatment. Control means having the power to direct or manipulate factors to achieve a desired outcome.
Nonprobability sampling does not hold random selection or assignment as criteria for participant sampling techniques.
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