Psychology 2800E Lecture Notes - Lecture 16: Dependent And Independent Variables, Beck Depression Inventory, User Friendly

• School: Western University
• Department: Psychology
• Course: Psychology 2800E
• Professor: Patrick Brown

Document Summary

Intensive description and analysis of the performance of one subject. Independent variable is manipulated within an individual: this is an experiment, allows for a conclusion about cause and effect. In the n=1 experiment, we arrange things so that a change in behavior occurs always and only when the treatment occurs. Always and only: always whenever the treatment occurs, the change in behaviour occurs, only the change in behaviour does not occur unless the treatment occurs. If both always and only are true, we have eliminated alternative hypotheses in the n=1 experiment. If the baseline is stable over a number of observations, begin the intervention. If baseline is not stable, you must stabilize it before intervention: for example, arrange a medical intervention that will help, or choose a different variable to measure. The abab design: a behavior recorded before intervention, b- treatment introduced, a- treatment withdrawn (second baseline, b treatment re-introduced. Abab example: an example: horton (1987) behaviour modification.