The purposes of blind playtesting, and how to know when you've done it enough:
http://brandonthegamedev.com/how-many-blind-play-tests-does-your-board-game-really-need/
Tips & Resources for Board Game Designers
The purposes of blind playtesting, and how to know when you've done it enough:
http://brandonthegamedev.com/how-many-blind-play-tests-does-your-board-game-really-need/