PSYC 2021 Lecture 1: PSYC 2021 - STATS 1: Chapter 1 - Lecture, textbook and exam notes - Winter 2018, Monique Herbert
24 Jan 2018
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Statistics: set of statistical/mathematical procedures - used to organize, summarize, interpret information. Population: set of all individuals of interest for a particular study. Needs to be clearly identified by researcher. Characterized by parameters - numerical value derived from measurements obtained from a population that describes a population. Sample: subset of individuals selected/recruited from the population. Characterized by statistics - numerical value derived from measurements that. Sampling error: sample provides partial or limited information about population. Population: all psyc phd students - population parameter: avg completion time = 58 months. Sample #1: psyc phd students in program a - sample statistic: avg completion time = 55 months. Sample #2: psyc phd students in program b - sample statistic: avg completion time - 50 months. Variable: a characteristic or condition that changes or has different values for different individuals. A data set: a collection of measurements or observations.
