Interrupted time-series designs are most useful in providing a good way of testing causal hypotheses under
A) very controlled laboratory conditions.
B) many field conditions.
C) anesthesia.
D) the usual constraints of experimentation.
Question 2
If we wanted to determine if hospital admissions for asthmatic attacks were related to air quality, which of the following would be the most appropriate design?
A) ex post facto
B) pretest-posttest
C) interrupted time-series
D) independent groups