Some questions to consider asking blind playtesters:
http://drwictzboardgames.blogspot.com/2013/10/what-to-ask-on-blind-play-tester.html
Tips & Resources for Board Game Designers
Some questions to consider asking blind playtesters:
http://drwictzboardgames.blogspot.com/2013/10/what-to-ask-on-blind-play-tester.html