Which of the Following Statements Is True of a Single-Subject

Multiple Choice

Which of the following statements is true of a single-subject research design?​

A) ​It prevents practitioners from obtaining measures of the extent of problem behaviors before implementing interventions.
B) ​It prevents practitioners from implementing interventions aimed at decreasing the frequency of positive but insufficient behaviors.
C) ​It provides a baseline against which the results of interventions to eliminate problem behaviors can be assessed.
D) ​It enables practitioners to rate goal achievement on a scale with points assigned after rating is completed.