answer:It sounds like there are actually four variables (A, B, X, and Y). A Chi square might help to set things up. Imagine four boxes two on top of two. Across the top it says “Approach” and along the left side, it says “Construction. So the two upper boxes will contain the values for Construction A (the left will be Approach X and the right will be Approach Y). The two bottom boxes will contain the values for Construction B (the left will be Approach X and the Right will be Approach Y). I love SPSS for doing this type of stats, it works pretty much like an Excel spreadsheet and you plug in the values and it crunches the numbers. Based on what you said, I would expect that the upper left box and the lower right box will hold the majority of your values and there won’t be very high numbers in the upper right or lower left box. SPSS will help determine the p value. If you have a language where you KNOW your hypothesis is true, you can test each of the other languages against it in a Chi Square. This will let you test your null hypothesis: all things being equal, you would NOT expect that Approach X will be any different than Approach Y for construction A.