Which research method is best used for eyewitness testimony?

i need to compare 4 groups of data which i gained from a questionnaire based on eyewitness testimony and would like to know what research method is best





anova?


chi square?

Which research method is best used for eyewitness testimony?
Well it would depend on the data was exactly.





If your data was in categories (for example, race) you should use a chi square.





If your data was to with means etc you should use the ANOVA.
Reply:According to the Mythbusters, hypnosis of the eyewitnesses gives the most accurate data.