An interrupted time-series design is particularly useful when
A) there are no issues of causality to be addressed.
B) the presumed causal event occurs to only some members of a population.
C) the presumed causal event occurs to all members of a population.
D) the research is concerned with attempting to predict aggressive behavior in children.
Question 2
Two potentially confounding factors in the interrupted time-series design are
A) maturation and testing effects.
B) regression to the mean and selection.
C) history and instrumentation.
D) maturation and regression to the mean.
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