Changes in the direction of the data path between baseline and ...

[awywial]

Changes in the direction of the data path between baseline and intervention phases are called ___________.
 
  A. directional changes
   B. immediate changes in level
   C. correlations
   D. trend changes

Question 2

Explain the basic elements of a multiple baseline across subjects design including selection of subject(s), dependent variable(s) and how the dependent and independent variables are implemented.
 
  What will be an ideal response?

[Brummell1998]

Answer to Question 1

D

Answer to Question 2

Three subjects are selected who demonstrate the same target behavior in the same settings. Baseline data are collected on all 3 subjects. As subject 1 receives intervention, subjects 2 & 3 continue in baseline phase. When subject 1 reaches criterion performance of the target behavior, then the independent variable is implemented with subject 2 . The process is repeated until subject 3 also receives the independent variable. The dependent and independent variables are the same for each subject.