To determine whether a new drug decreases self-injurious behavior,the researcher measures the self-injurious behavior of 3 children,and then gives the drug to the first child after one week.After two weeks of baseline,the second child gets the drug and after 3 weeks of baseline,the third child gets the drug.This is an example of a(n)___________ design.
A) multiple baseline across subjects
B) changing criterion
C) multiple baseline across behaviors
D) alternating treatments

Question

To determine whether a new drug decreases self-injurious behavior,the researcher measures the self-injurious behavior of 3 children,and then gives the drug to the first child after one week.After two weeks of baseline,the second child gets the drug and after 3 weeks of baseline,the third child gets the drug.This is an example of a(n)___________ design.​
A) ​multiple baseline across subjects
B) ​changing criterion
C) ​multiple baseline across behaviors
D) ​alternating treatments

Quizplus · Accepted Answer

This is an example of a multiple baseline across subjects design, where the intervention (in this case, the drug) is introduced at different times across different subjects (the three children) to control for the effects of maturation and other external variables.

To Determine Whether a New Drug Decreases Self-Injurious Behavior,the Researcher