I have a problem where I have 14 items and each respondent i
Hi,
I have a problem where I have 14 items and each respondent is to be
shown 7
If I calculate the combination needed for a complete bolck design I get
3432. Unfortunantely this isn't practical.
Could anyone provide me with guidance in being able to create a design
with a smaller sample size (i.e. say less than 500) and how I go about
creating it?
I get this sort of problem once every few year, can anyone recommend a
good book that I could use as a reference in the future?
Thank you for your help
Alison
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