Author Question: What is a major potential confounding factor in the simple pretest-posttest design that is ... (Read 19 times)

mynx · **on:** Aug 4, 2018

What is a major potential confounding factor in the simple pretest-posttest design that is controlled for in the interrupted time-series design?

A) instrumentation
B) regression to the mean
C) selection
D) maturation

Question 2

What is the difference between a simple pretest-posttest design and an interrupted time-series design?

A) The time-series design uses multiple measures taken at several points in time both before and after the manipulation.
B) The simple pretest-posttest design uses a single measure at pretreatment and post-treatment.
C) The time-series uses a series of measures that are interrupted by the manipulation.
D) All of the above