I would start thinking about statistical tests whilst designing my experiment. It will make your life easier in the future and is necessary if you’re applying for NHS REC.

There are websites that can help you choose depending on whether you use SAS, Stata, SPSS or R, or Prism. It definitely helps to know what types of variables you have and the difference between dependent and independent variables.

This website can come in handy if you need to make a Power or Sample size calculation but don’t have access to SPSS SamplePower.

SciStatCalc is an excellent blog by Alijah Ahmed who clearly knows a thing or two about stats. The on-line calculators section has a good deal of  statistical tests that can be very useful for those who don’t have the luxury of statistical suites.


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