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Internal and External validity

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I define the concepts of internal validity and external validity and discuss why increasing one type decreases the other type.

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A good experiment has to have Internal and External validity. Checking for validity is like answering a question of whether the experiment has been designed well, whether the variables that are being measured are really affected by ...

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Internal and External validity are compared.

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Research Methods: Which is more important: external validity, internal validity, balance

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