I find it useful to ask what will be done with the results of data collection efforts (in order to confirm that the effort is a wise use of resources). If you don’t have an answer for how you will use the data, once you get it, then you probably shouldn’t waste resources collecting it (and I find there is frequently no plan for using the results).
I have found it helpful to ask: what will you do if the data we collect is 30? What will you do if it is 3? The answer does not need to be some formula, if 30 then x. But rather that the results would be used to help inform a decision process to make improvements (possibly the decision to focus resources in that area). I find, that asking that question often helps reach a better understanding of what data is actually needed, so you then collect better data.
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