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An experiment was designed to test a hypothesis that stated that high-drive subjects would be able to learn a simple task much more quickly than would low-drive subjects. The hypothesis further state that on a difficult task the opposite would be found – low-drive subjects would learn the task more quickly. The experimenter’s operational definition of drive was each subject’s score on the Manifest Drive Scale. Twenty adolescents who scored high on the scale (high-drive) and 20 others who scored low on the scale (low-drive) were given a difficult task to learn. The low-drive group learn the task more quickly than did the high-drive group and the experimenter concluded that the hypothesis is correct.
1) Identify the independent variables
2) Identify the dependent variables
3) Identify the experimental error
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