1. Choose Anova2 Demonstration from the main menu.
2. The computer will prompt you to hit any key when you're ready.
3. To "hit" the target, place the cursor on any part of the square and press the left key of your mouse.
You will be presented with 32 targets which consist of 3 embedded squares. You must try to "hit" the target with your mouse. As in Anova Demonstration, 8 targets will be faster moving, and 8 targets slower moving, and you will have the whole screen to line up your mouse cursor with the target. Also in this demonstration is an added factor. You will be given 8 more faster and slower moving targets, which you must hit in the first quarter (leftmost side) of your screen.
To "hit" the target, place the cursor on any part of the square and press the left key of your mouse. If you hit the target in the innermost square, you will earn 25 points, if you hit the target in the middle square, you will earn 15 points, and if you hit the target in the outermost square, you will earn 5 points. (Of course, if you miss, you will score 0 points.)
You will be given a practice session, and then a second, data-collection session. In the second session, your scores are collected and used as data in an two-way Analysis of Variance. The two factors of speed (faster vs slower) and screen size (whole vs quarter) as well as their interaction will be tested for significance.
This demonstration gives you an opportunity to collect data quickly, and to use this data to practice solving 2-way ANOVAs. You may even find that with a lot of practice, and on a good day, your scores in each of the conditions are no longer significantly different. (You may also find, with a lot of practice, that you can compute F statistics in your sleep.)