Understanding interactions

Select the correct answer for each of the questions below:

Graph 1

Main effect of trial type: YES / NO

Main effect of training type: YES / NO

Interaction: YES / NO

Graph 2

Main effect of trial type: YES / NO

Main effect of training type: YES / NO

Interaction: YES / NO

Graph 3

Main effect of trial type: YES / NO

Main effect of training type: YES / NO

Interaction: YES / NO

Graph 4

Upload your graph here. It should show an interaction, a main effect of trial type, and no main effect of training type. It must be in PNG format.

AUTO MARK:

Graphs 1-3: The correct answers are show in bold. Obviously this should not be the case for what the student sees!

Graph 4: A .png file must be uploaded.