PSYC08H3 Study Guide - Summer 2018, Comprehensive Midterm Notes - Null Hypothesis, Bors, Variance
Document Summary
First midterm: chapter 1, a few sections of other chapters (2, 4, 5, 6, 7, a part of chapter 8, first midterm works on logic, basic framework for the rest of the course. Our magic numbers: 1. 96 or -1. 96: this number gives the cut-off where it is the lower or higher 2. 5, error: variance, not mistake . Key concepts from chapter 1: nuisance variable: an unwanted variable that is typically correlated with the hypothesized independent variable within an experimental study but is typically of no interest to the researcher. It might be a characteristic of the participants under study or any unintended in uence on an experimental manipulation: example: a researcher is investigating how easy it is to lose weight. Potential nuisance variables include: ease of weight loss is probably related to how much a person is overweight, some people might have a genetic predisposition to be overweight.
