A researcher has developed a device to prevent snoring.The device works immediately when it is put on, but has no lasting effect when it is removed. The researcher decides to evaluate this device with a single-subject design. Which design is most appropriate?
a. ABAB design
b. multiple-baseline design
c. alternating treatments design
d. changing criterion design
Question 2
A statistical estimate of the standard deviation one would obtain from the distribution of an infinite number of estimates of the difference between the means of two groups is the ____.
a. standard error of the difference
b. estimated error
c. regression coefficient
d. correction factor
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