With regard to population group comparison in the case study give, I thought comparing the ratios of the total participants to the total population in the different groups would be a more revealing method of determining which population group got better traction for the initiative.
In any case, any comparisons would not take away from the fact that ( I feel ) the initiative does have some intrinsic value to society, even if it just translates in one participant informally sharing the knowledge with another person or two. Still that’s value.
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