Content Area 5: experimental evaluation of interventions Flashcards
Withdraw design
1
reversal design
independent variable with withdrawn
changing criterion design
Baseline is determined. Sub-phases. Then R+ is given when Bx reaches criteria. Criteria is slowly raised. Bi-directional changes that closely conform to criteria indicate experimental control. Minimum of 2 bi-directional criterion change to show experimental control
multiple baseline design
1
component analysis
splits out the components of an intervention to see what the important variable are (whole pkg., whole pkg. - response cost) (tests multiple interventions)
parametric analysis
systematic examination of the magnitude of a range of values of the independent variable (how much of the cough syrup does it take to get rid of the cough) (only tests one intervention)
parametric vs. component
parametric-testing varying levels of one variable
component-testing multiple variables
changing criterion used mostly
- to change Bx slowly
2. to decrease Bx
Changing criterion design, each sub phase is
designed to increase closer approximations toward desired behavior
changing criterion is useful only when
measuring stepwise criterion (i.e. cigarettes, # of math problems)
problem w/multiple baseline design
stimulus generalization would make it hard to interpret data.
multiple treatment interference
subjects are exposed to multiple treatments=conclusions aren’t reliable
sequence effect
subjects behavior in one condition can be influenced by the subjects experience in a prior condition. (if a person is satiated then they might not be hungry for the second condition)
carryover effects
patterns of Bx established in one session inadvertently extend into a second session, even if the independent variables are very different. (behavior extends from one condition to the next)
