Thanks to all who contributed to the answer to the stats question. I ended up doing the analyses both with the McNemar and with a paired samples t-test (time 1 versus time 2) and then did a Simes' correction (a type of Bonferroni correction that I like better than most others because it is slightly more conservative so that I don't over-invest in my data) for both. It turned out almost exactly the same. Only one item differed and it goes back to the more conservative nature of the Simes' correction. This was MOST helpful to me as was the discussion of how to think about 1/0 data sets depending on the basis on which we assign the the 1s and 0s. I think I was over-thinking; my initial approach was the t-test approach with correction. But then I got to thinking that 1/0 data should be nominal in the sense of what is correct and what is incorrect is nominal in a sense; on the other hand, there are distinct criteria for determining accuracy that are clearly different from something, like, say gender which is almost immutable in its differentiation.
Thanks again for the great overall discussion of the finer points of this issue. I really love tips :) Thanks, Bill! Annette Annette Kujawski Taylor, Ph. D. Professor, Psychological Sciences University of San Diego 5998 Alcala Park San Diego, CA 92110 [email protected] --- You are currently subscribed to tips as: [email protected]. To unsubscribe click here: http://fsulist.frostburg.edu/u?id=13090.68da6e6e5325aa33287ff385b70df5d5&n=T&l=tips&o=23206 or send a blank email to leave-23206-13090.68da6e6e5325aa33287ff385b70df...@fsulist.frostburg.edu
