What can we conclude in a time-series design if the dependent ...

[lak]

What can we conclude in a time-series design if the dependent variable shows a marked change in the predicted direction at precisely the point at which we have randomly introduced the treatment?
 
  A) Such a change is likely to have occurred because of maturation.
  B) We have a convincing illustration that the independent variable was effective.
  C) Such a change is likely to have occurred because of history.
  D) We cannot conclude anything.

Question 2

What is randomized in the single-subject, randomized, time-series design?
 
  A) the time at which the manipulation or treatment is introduced
  B) assignment to a treatment group
  C) type of dependent measure used
  D) All of the above

[tashiedavis420]

Answer to Question 1

Answer: B

Answer to Question 2

Answer: A

[lak]

Excellent

[frankwu0507]

Gracias!