Lab 4.4 A group of researchers is interested in examining people's performance on different tasks. They want to see if task difficulty (easy task vs. hard task) and format of presentation (paper vs. computer) has a significant impact on performance. What are the 2 factors? How many levels are in each factor, and what are these levels What is your DV Explain what a main effect 1 would tell you (in general, not with specific numbers) Explain what a main effect 2 would tell you (in general, not with specific numbers) . Explain what an interaction would tell you (in general, not with specific numbers) Draw a 2x2 chart for your study using the following means: Paper x Easy = 90 o Paper x computer = 40 o computer x easy = 70 o computer x difficult = 60 * hint: using the values from the individual cells above, find the means for the following: - Mean of easy task = - Mean of difficult task = - Mean of paper format = - Mean of computer format = Graph: o plot the numbers on a graph explain what your graph tells you is there an interaction