A macro for analyzing free classification data

<To use this>
1. You should make a ppt slide with 3 kinds of items: 1) a grid in the center, 2) an instruction (or a sentence) over the grid, 3) audioboxes. 
2. The order of adding items 1) 2) and 3) does not matter, but it's still better to keep the order of 1) 2) and 3).
3. When you add audioboxes 3), you should keep the alphabetical or numeric order of the file names. For example, add "3.avi" before "4.avi", not the other way around. 
4. You can make your own grid and adjust the size of the audioboxes as you want, but basically it's always better to start with Cynthia's slide, which has an instruction and a grid already in it. 
5. All of your audioboxes and a cell of the grid should be in the same size. (So, just use Cynthia's slide. You can still make as many boxes as you want.)
6. Your audioboxes should be well-aligned on your grid. 
7. This macro file and your results files should be in different folders.
8. In the result foder, you can put output files from one experiment, so that they are in the same format (in terms of number of boxes, location of the grid...). Don't mix result files from different experiments. 
 
<Things you don't have to care>
1. You can make as many audioboxes as you want, up to 30 (or more).
2. You can make your audioboxes and the grid as big or small as you want.
3. You can put as many result files as you want in a folder, and this macro will analyze all of them at once for you. 
 
<What you have to do in running this>
1. Run the macro and put the path of your result folder into the input box. 
2. That's it, the macro will let you know that it's done with the job and tell you where to go to see the output files.
 
<What it gives you>
1. a text file with grouping information for all of your result files
2. a text file with similarity (ver. 2.4) or dissimilarity (ver. 2.41) matrices for all of your result files.

<A tip for naming movie files>
As Cynthia said, a movie file name should mean nothing to subjects and something to you. So perfect random naming, such as "A.avi", "B.avi", "C.avi".., would work for the first purpose, but not very well for the second purpose. Cynthia suggested subject initials to name movie files, and you can think about this from your own point of view for your own analysis.