In time-series designs, what are the two major potential confounding factors that are difficult to control without the addition of a comparison group?
A) instrumentation and history
B) regression to the mean and instrumentation
C) history and attrition
D) instrumentation and selection
Answer: A
Political Science
You might also like to view...
What are some of the ways local governments utilize the Foursquare smartphone application to improve the quality of services to residents?
A.) It can be used to pay property taxes B.) It can serve as a substitute for 911 emergency services C.) It can be used to report issues, like potholes D.) It can display civic attractions E.) It can be used to challenge traffic violations and set court dates
Political Science
Identify the diversionary theory of war.
What will be an ideal response?
Political Science