Psychology 2800E Lecture Notes - Lecture 6: Caffeine, Railways Act 1921

• School: Western University
• Department: Psychology
• Course: Psychology 2800E
• Professor: Prof.M.Penner- Wilger

Document Summary

Allows us to examine the effects of two or more ivs at the same time. Factorial means that all possible combinations of all levels of each iv are examined. Allows us to examine the combined effects of two or more variables. This is new and cool and important o o. Effect of a single iv on the dv. This is what you have in your experiments o. Joint effect of the ivs (which we don"t see if we examine each iv separately) Effect of one iv is different at different levels of another iv. Effect of one iv depends on the level of another o. The effect of one of the iv is strengthened or weakened at one or more levels of the other iv (but the direction of the effect does not change) One iv reverses its effect depending on the level of. The means of one iv alone (ignoring other iv)