Which of the following phenomenon is a potential threat to external validity?
a. instrumentation
b. reactive effects
c. selection bias
d. statistical regression
b. reactive effects
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Missing data in qualitative research serves as a type of:
a. analytical technique b. focus groups c. connector that accounts for what participants declined to mention d. none of the answers are correct
The National Drug Control Strategy developed several goals designed to help in addressing the drug problem in the United States. Which of the following is not one of these goals?
A. education B. encouraging border control C. community action D. treatment
Identify the threats with the type of validity they threaten
1. Pretest effects a. Internal validity 2. History b. External validity 3. Reactivity 4. Self-selection 5. Maturation 6. Instrumentation 7. Experimenter bias 8.Multiple-treatment interference 9. Statistical regression 10. Experimental mortality
What term best describes "a promise for a table in a restaurant"?
A. blocking B. reservation C. availability D. consideration