PSY 291 Study Guide - Final Guide: Statistical Inference, Sign Test, Alternative Hypothesis

• School: University of Miami
• Department: Psychology
• Course: PSY 291
• Professor: Elizabeth A. Simpson

Document Summary

Null hypothesis (h0) -set up to be the logical counterpart of the alternative hypothesis such that is the null hypothesis is false, the alternative hypothesis must be true. If the obtained probability < (cid:573), reject h0. If the obtained probability > (cid:573), fail to reject (0 / retain h0. Type i error- reject null hypothesis when it"s really true (cid:523)false positive(cid:524) Type ii error- retain null hypothesis when it"s false (cid:523)miss, false negative(cid:524) due to the )v when it"s really not. In other words, you say the difference in results is not due to the iv when it really is. In other words, you say the difference in results between groups is. Sign test- statistical inference test that"s appropriate for repeated measures with 2. A: )t omits a lot of information, making the test rather insensitive; doesn"t detect group differences.