Kellett and Beall (1997) were treating a woman with suffering from posttraumatic stress disorder (PTSD) after an automobile accident.
They obtained baseline measurements on frequency of nightmares, intensity of nightmares, and time to recover from a nightmare. They treated the woman, then obtained measurements of the same variables. This design illustrates
a. an ABABAB design.
b. a retrospective design.
c. a withdrawal design.
d. a multiple baseline study.
Question 2
If a researcher doing single-subject research wants to investigate several different behaviors, the design would be called
a. a retrospective study.
b. a case study.
c. a multiple baseline study.
d. an N of 1 randomized clinical trial.
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