3 Principles of experimental design
{"Image DocumentName": "3 Principles of experimental design", "Image ImageDescription": "Control the effects of lurking variables on the response, most simply by comparing two or more treatments. Randomize\u2014use impersonal chance to assign subjects to treatments. Replicate\u2014use enough subjects in each group to reduce chance variation in the results.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}