Sunday, February 20, 2011
Chapters 11-12: True Experiment Design
The reading assignment for this class session was the most difficult to date. The difficulty comes from amount of new material presented all at once. The area of confusion I had was making sense of order effect and sequence effect..The concept of sequence, if I understand it correctly is that the the interaction of the conditions themselves affects subject's performance.In contrast, order effect is a change in a subject's performance based on the ordinal position of the conditions. In summary, sequence effect is due to a specific reason, not just based on order, that has an effect on outcome.
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