A researcher is interested in the effect of a late afternoon snack on attention to school work. She designs a single-case design to test the hypothesis that the snack will increase the number of minutes of attention. She uses one child and starts out by measuring his attention to school work during 10 baseline sessions. She then introduces the snack for 10 sessions. After those 10 sessions, she withdraws the snack and examines 10 sessions of baseline again. Finally, she then reintroduces the snack for 10 more sessions. What kind of design is this?
A) Multiple-baseline design across settings
B) ABAB design
C) Changing-Criterion Design
D) Multiple-baseline design across people

Question

A researcher is interested in the effect of a late afternoon snack on attention to school work. She designs a single-case design to test the hypothesis that the snack will increase the number of minutes of attention. She uses one child and starts out by measuring his attention to school work during 10 baseline sessions. She then introduces the snack for 10 sessions. After those 10 sessions, she withdraws the snack and examines 10 sessions of baseline again. Finally, she then reintroduces the snack for 10 more sessions. What kind of design is this? 
A) Multiple-baseline design across settings 
B) ABAB design 
C) Changing-Criterion Design 
D) Multiple-baseline design across people

Quizplus · Accepted Answer

The Answer of A researcher is interested in the effect of a late afternoon snack on attention to school work. She designs a single-case design to test the hypothesis that the snack will increase the number of minutes of attention. She uses one child and starts out by measuring his attention to school work during 10 baseline sessions. She then introduces the snack for 10 sessions. After those 10 sessions, she withdraws the snack and examines 10 sessions of baseline again. Finally, she then reintroduces the snack for 10 more sessions. What kind of design is this? 
A) Multiple-baseline design across settings 
B) ABAB design 
C) Changing-Criterion Design 
D) Multiple-baseline design across people

A Researcher Is Interested in the Effect of a Late