Last class, we left off talking about Descriptive Studies such as Case Studies, Surveys, and Observations. Today, we opened class with an activity to demonstrate one of the biggest flaws with the survey method-- the wording effect. The "wording effect" is a type of framing effect which means the way a problem is presented makes a difference in how you respond to the problem.
We finished the class notes on Descriptive Studies, Correlational Studies, and Experiments in class. One major takeaway from class today is that you probably don't understand the true meaning of random as well as you think you do. You might also have a harder time with statistical reasoning than you think. We worked in groups on this activity on Statistical Reasoning to check on how well we understand randomness and probability. None of the answers on this assignment are opinion based, they all have a correct answer based on principles of probability and statistics.
We covered a lot of terms in class today, so make sure you double check your understanding of the following:
longitudinal studies, cross sectional studies, correlational coefficients, scatterplots, experiments, IV, DV, blind and double blind studies, control groups, placebos, random assignment vs. random selection
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