Complex design

Question 1

Complex design

Answer 1

When we have more than one independent variables

Question 2

Mixed design

Answer 2

When you use both independent group design and repeated measures

Question 3

How do you calculate the amount of conditions?

Answer 3

By multiplying number of independent variables with the levels of each variable.

Question 4

Main effects

Answer 4

De separate effect of every independent variable in a complex design

Question 5

Interaction effect

Answer 5

When the effect of an independent variable is dependent on another independent varaible

Question 6

3 steps to analyze a complex design

Answer 6

1. Check for ouliers and mistakes
2. Descriptive statistics (mean, standard deviation)
3. Inferential statistics (interaction effect, main effects)

Question 7

How do you find possible interaction effects?

Answer 7

By using the subtraction method
In graphs where lines are not parallell: they cross each other, converge or diverge

Question 8

3 problems with interaction effects

Answer 8

-Floor and ceiling effects
-Sometimes interaction effects can be statistically significant “by accident”
-If there is enough space in the dependent variable the interaction effect would disappear.