Make up a simple two-group example to demonstrate that for a total of 30 subjects, power increases as the sample sizes become more nearly equal.
Answer to relevant QuestionsA beleaguered PhD candidate has the impression that he must find significant results if he wants to defend his dissertation successfully. He wants to show a difference in social awareness, as measured by his own scale, ...Calculate the power of the anorexia experiment in Section 14.1, assuming that the parameters have been estimated correctly. How many subjects would we need in Exercise 15.6 to have power 5 .80? Darley and Latané (1968) recorded the speed with which participants summoned help for a person in trouble. Some participants thought that they were alone with the person (Group 1, n 5 13), some thought that one other person ...Spilich et al. (1992) ran a third experiment in which the three groups of smokers participated in a driving simulation video game. The AS group smoked immediately before the game but not during it. The data follow, where the ...
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