You Want to Analyse a Dataset Looking at Differences in Critical

Multiple Choice

You want to analyse a dataset looking at differences in critical thinking ability between psychology students and physics students and the end of each year of study across a three year degree. Your analysis shows that critical thinking skills improve greatly across the degree in psychology students, but remains exactly the same in physics students. What kind of effect is this?

A) A significant interaction
B) A not significant interaction
C) A significant main effect
D) A not significant main effect