# PSYC 308 Lecture Notes - Lecture 6: Papyrus 75, F-Test, Analysis Of Variance

## Document Summary

P o p u la " o n ) In fe re n " al)sta " s" cs) D e scrip " ve )sta " s" cs) Descriptive statistics(what the sample looks like the closer people"s scores are the smaller the sd) Standard deviation (sd: on average how many people deviate from the mean) Correlation coefficient = descriptive statistic; but can be used with inferential tests. Ex: video games and aggression condition 1 is significant larger tan condition 2 t test= different group against each other. When study 2 groups ,whether or not values is different from one group to the other. F test = more than 2 groups, compare all the mean against each other. Do the group difference more than the individual difference. The more noise/ signal ration the more signal you will have t(17)= 1. 23, p = . 235 f(3,200)= 2. 87 p=. 0. 38.