PSYC 110 Lecture Notes - Lecture 2: Analysis Of Variance, Categorical Variable, Central Tendency

• School: Emory University
• Department: Psychology
• Course: PSYC 110
• Professor: Kazama Andrew

Document Summary

How and why does behavior vary? (exercise example) Summarize and simplify the data you have. Use the data you have to make inferences about data you don"t. Measures of central tendency (mean, median, mode) Figuring out what the middle or most of the data set looks like -- in a number, one value that represents the middle of the data set. Which mct is most appropriate for summarizing: Normal distribution= tightly packed around the mean. Standard deviation is the square root of variance. Behavioral researchers are most interested in systematic things because systematic is about relating to something else. Variability in x that"s systematically related to variability in y. Variability in x that"s unrelated to variability in y. Minimize static -- before you have data, early in study design. Strength of association between variables of interest (higher values is stronger relationship.