COGS 14A Lecture Notes - Lecture 20: Null Hypothesis, Analysis Of Variance, Dependent And Independent Variables

• School: UCSD
• Department: Cognitive Science
• Course: COGS 14A
• Professor: Steve Barrera

Document Summary

Cogs 87, learn about cog. sci, and science communication. Test many levels of the independent variable or many independent variables at one time. Allows us to look at multiple independent variables at multiple levels on a dependent variable. The second two tells us there are two levels of independent variable. Two independent variables, first has two levels. Three levels of second independent variable in our flanker task, we manipulated two independent variables: congruency and affect. Congruent means the colors on the outside are the same. Affect: neutral or positive connotation of the words. If you add in a negative condition, adds a level not a new independent variable. Several possible results are possible in our experiment. Significant difference between the two levels of one variable. Significant difference between the two levels of the second variable. One independent variable reacts with another differently. Null= no main effect due to independent var. Null2= no main effect due to independent variable 2.