Psychology 2810 Study Guide - Midterm Guide: Standard Deviation, Analysis Of Variance, Null Hypothesis

• School: Western University
• Department: Psychology
• Course: Psychology 2810
• Professor: Tony Vernon

Document Summary

When the research design uses two groups in which each participant from one group is matched with a participants from the other group on a particular characteristic (e. g. , iq) matched pairs. When the design finds each participant being tested twice (e. g. , at time 1 and again at time 2) repeated measures. A design similar to the above two is set up using non-human participants/objects. In these hypotheses, you are using d as your basis, which represents the mean difference between scores. For these particular tests, you have to ensure that your null hypothesis and your alternative hypothesis complement each other. When testing whether there is an overall change or difference (no direction or value specified): Ha: d 0 (some difference either an increase or a decrease) When testing whether the mean difference is greater than a specified difference (e. g. , participants gained more than 3 pounds on a week-long ice-cream diet) Ho: d specific difference value (e. g. , 3)