Introduction To Data Analysis

Question 1

Main Effect

Answer 1

There is a main effect of factor A when the total of A1 is not the same as the total of A2

Question 2

When Treatment Has No Effects

Answer 2

Placebo and experimental groups display the same pattern of change

Question 3

When Treatment Has An Effect

Answer 3

Placebo and environmental groups display different patterns of change

Question 4

No Interaction (2)

Answer 4

-When bars on the right display the same patterns as the bars on the left
-When lines are parallel

Question 5

Interaction (2)

Answer 5

-When bars on right display a different pattern than the two bars on the left
-When two lines are not parallel

Question 6

Spreading Interactions

Answer 6

there is an effect of one independent variable at one level of the other independent variable and there is either a weak effect or no effect of that independent variable at the other level of the other independent variable

Question 7

Cross-Over Interactions

Answer 7

If one factor goes up while another goes down