PSYC 300 Study Guide - Midterm Guide: Statistical Conclusion Validity, Null Hypothesis, Confounding
21 Jan 2017
School
Department
Course
Professor
Document Summary
Chapter 8: hypothesis testing and inferential statistics: understand what inferential statistics are and how they are used to test a research hypothesis. Inferential statistics estimate the probability that our results were due to chance. It helps infer how the results from your sample might generalize to the population, giving the ability to draw conclusions about your data (sample population). When p is small, it means there"s a significant difference between the two groups that you"re testing (can reject the null: define the null hypothesis. The null hypothesis describes that there is no difference between groups; the independent variable had no effect on the dependent variable. When p is large, we fail to reject the null hypothesis . Alternative: iv had an effect on dv so we reject the null : define alpha. The standard that the observed data must meet.
