The two most important potential confounding factors in ...

[genevieve1028]

The two most important potential confounding factors in time-series designs are
 
  A) history and instrumentation
  B) selection and regression to the mean
  C) regression to the mean and cohort effects
  D) cohort effects and history

Question 2

By using an interrupted time-series design with a single group of participants, researchers can
 
  A) randomly assign participants to treatment conditions.
  B) take advantage of data already gathered over a long period of time.
  C) create a simulated between-subjects design.
  D) attenuate reliability.

[thall411]

Answer to Question 1

Answer: A

Answer to Question 2

Answer: B

[genevieve1028]

Thank you!

[thall411]

Always glad to help...