Comolex Experimental Designs 10 Flashcards
Simple main effect
Examines mean differences at each level of the IV
Main effect
Factorial designs. He information about the effect of each IV taken by itself
Factorial designs
Designs with more than one IV. All levels of each IV are combined with all levels of the other IV
Interaction
Factorial designs
IV X PV designs
One common type of factorial designs includes both experimental and non experimental variables
Moderator variable
Influences the relationship between two other variables
Mixed factorial designs
Combination of two
Independent group design (between-subjects design)
A different group of participants will be assigned to each of the four conditions
Repeated measures design (within-subjects design)
Same individuals volunteer in all conditions
Factorial designs give us two kinds of information. Thirst information is about the effect of each IV by itself. This is a
Main effect
In factorial designs ___________ between IV indicates that the effect of one IV is different at different levels of the IV
Interaction
A factorial design that examined an experimental IV of a class size ( large class or a small class) and the variable of ethnicity would be called
IV X PV design
In a factorial design, a factor is an
Independent variable
A 2 x 4 x 2 factorial design has how many factors ?
The first factor has ______ levels and the second has ________ levels
3
2
4
If you used an independent group design with 10 people per group how many participants would you need for a 3 X 2 factorial design?
60
