Author Question: What can we conclude in a time-series design if the dependent variable shows a marked change in the ... (Read 20 times)

lak · **on:** Aug 4, 2018

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