1. No more than two independent variables, ideally one 
2. At most three conditions per independent variable, ideally two 
3. Only one primary dependent variable

Arizona State University

School of Visual Arts

Knowing there are pretty dangerous pitfalls in statistical analysis and that statistics is a challenging area to master: so, it should follow keep it simple stupid (KISS). Simpler experiments are actually more severe tests because there is nowhere to hide: something either clearly passes the test or it does not.

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