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Question
DB 3.1
What are the differences between exploratory, descriptive, and explanatory studies? Also, what are the differences between cross-sectional and longitudinal studies? Which type of study would you be most interested in running (for example, an explanatory, longitudinal study)? Why?
DB 3.2
What is sampling, and why do we do it? Also, what is random assignment, and why do we use it? Please use the readings from the text to help guide your answer.
