Neely is examining the graph of an interaction and sees that

Neely is examining the graph of an interaction and sees that one line is flat and one line rises sharply to the right. Which of the following should Neely conclude?

The answer is NOT D.

a. There is a spreading interaction
b. There is a crossover interaction
c. There is no interaction
d. There is a main-effect interaction

Solution

http://www.arts.uwaterloo.ca/~psych291/lectures9and10

I think it is catalytic interaction. Please refer the above link for clear understanding.

i dont have exact idea about this topic.