PSYC 102 Lecture Notes - Lecture 3: Statistical Inference, Cortisol, Descriptive Statistics
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PSYC 102 Full Course Notes
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> study a subset of people to make statements about all similar individuals of interest. > the field of study concerned with the collection, organization and interpretation of data. To summarize and examine the sampled data ( descriptive statistics ) To use sampled data to make reasonable inferences about the population you are interested in ( inferential statistics ) Ie) the more i eat, the more happy i weigh (positive b/c both increase) Ie) the more i study, the less time i have for friends (negative b/c something decreases) R = 0. 87 (strong +) r = 0. 12 (weak +) r = -0. 56 (strong -) Just b/c two things are related to each other, one doesn"t necessarily causes the other. > descriptive statistics allow us to view our sampled data but do not allow us to make statements about how these data may apply to greater population.
