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Unformatted text preview: trend seen over baseline. Behaviour may be reactive to measurement and thus impossible to obtain a valid measurement 111111111111111111111111111111111111111111111111111111111111111111111111 Disadvantages of Small-N Designs Hard to demonstrate causality No controls in most cases Lack of statistics Can’t really look at interaction effects Counterbalancing is a problem Dependent variable usually limited to response rates Problem of external validity Advantage of Small-N Design Avoiding problems with the group mean Can examine participants from hard to find populations Can deal explicitly with individual (not group) behaviour. Results are easy to interpret (often no stats) Avoids small, unimportant effects Flexibility Can focus on helping one (few) participant(s)...
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- Spring '10
- Statistics, single-case research designs