PSY 295 Lecture Notes - Lecture 11: Null Hypothesis, Repeated Measures Design
Document Summary
How to do a hypothesis test review. 1 - state h0 and h1 with numbers. 2 - set a decision criterion by using alpha to find the boundaries of the critical region. Use alpha = 0. 05 as your critical value, unless stated otherwise. 3 - compute the observed value of the appropriate statistic (t or z) 4 - make a decision: compare the observed value to the critical value and put it in words. Reject or fail to reject the null hypothesis. Independent measures design: a research design that uses a separate group for each treatment condition. The independent variable varies between different subjects, but is constant within a subject. The hypothesis test with two independent samples. 1 - state hypotheses about the population. Null - h0 : 1 - 2 = 0 (there is no difference between the two means) Alternative - h0 : 1 - 2 0 (there is a difference between the two means)
