PSYC 372 Lecture Notes - Lecture 8: Confounding, Psych, Sphygmomanometer
17 May 2020
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We can maximize equivalence through: random assignment, pre-testing, & large sample sizes. There were 8 questions she didn"t know; she guessed all of them right. When she studied, she happened to read the exact material that would be on the exam. Therefore, for exam 1, lauren was very lucky: but her average score is 79%. Therefore, her next exam, she will most likely get a lower score, being less lucky and regress to her average/mean of 79: unlucky lauren example, say unlucky lauren gets a 64% on the first exam. There were many questions she didn"t know and guessed them all wrong. When she studied, she didn"t read the material focused on the exam. Therefore, for exam 1, lauren was very unlucky: but her average score is 84%. I have changed (in some way because of environment: example 1: drug reduction program, say johnny starts a program that works on reducing the amount of drug consumption (in his case, alcohol).
