1. A researcher is about to conduct a quasi-experiment that involves two groups of people. The researcher created the two groups (which will be levels of the IV) by identifying people in the top or bottom half (i.e., top or bottom 50%) of the distribution of their scores on a happiness measure. This is known as the
2. In a true experiment, what type of check can a researcher use to see if the experiment truly put the participants in the psychological state that the researcher was trying to create
3. If you plotted the results of a factorial study using lines whose slopes represents mean differences across different experimental conditions, the presence of non-parallel lines would indicate a statistical ________________________________.
4. A Latin square is one specific example of
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