Final answer:
A small-N design that involves providing treatment and then removing treatment is known as a reversal design. Option B is correct.
Step-by-step explanation:
The correct answer is b. reversal design.
A small-N design that involves providing treatment and then removing treatment is known as a reversal design. In this design, the treatment is implemented for a period of time to observe its effects, and then the treatment is removed to see if the effects are reversed.
For example, in a study on the effectiveness of a new teaching method, a teacher might implement the new method in a classroom for a certain period of time, and then switch back to the traditional teaching method to see if the students' performance changes.
The small-N design that involves providing treatment and then removing treatment to assess its impact is known as a reversal design. This method is a powerful experimental approach in behavioral science and psychology where the participant's behavior is measured before treatment, during treatment, and after treatment is withdrawn to determine whether the treatment has an effect.
Reversal designs help to show whether changes in the dependent variable are attributable to the introduction and withdrawal of the treatment.