What is the name of the single-subject research design that ...

[ahriuashd]

What is the name of the single-subject research design that introduces an independent variable at different times for different behaviors to see if changes in behavior coincide with manipulation of the independent variable?
 
  a. multiple-baseline design
  b. changing-criterion design
  c. interaction design
  d. multiple-conditions design

Question 2

Madge took special classes from Barbie to improve her spelling. Barbie first tested Madge's current spelling ability. Barbie was not sure what teaching method would work best, so she tried 3 different ones: positive practice, positive reinforcement, and correction. She tried a different method during each class, testing Madge's spelling at the end of the day. What design was Barbie using?
 
  a. Alternating Treatment
  b. Changing Criterion
  c. Multiple Baseline
  d. Interaction Design

[Anonymous]

Answer to Question 1

a

Answer to Question 2

a

[ahriuashd]

Thanks for the timely response, appreciate it

[xiazhe]

Excellent