This text describes how to design and analyze small efficacy or evaluation studies. The problem facing many researchers is how to design a study that is as small as possible, yet big enough to yield relatively unambiguous evidence about an interve...Lasīt vairāk
This text describes how to design and analyze small efficacy or evaluation studies. The problem facing many researchers is how to design a study that is as small as possible, yet big enough to yield relatively unambiguous evidence about an interve...Lasīt vairāk
