[HOT] Fwd: [OpenStreetMap] Student Survey Humanitarian OpenStreetMap Team Goethe-University Frankfurt
mail at katja-ulbert.de
Thu Jun 11 18:35:43 UTC 2015
it wasn´t my intention to falsify their results;-) But the request
didn´t come from HOT itself, so I wanted to check if anybody knew about
it. I have never given my email or contact data to this university. They
are registered as a HOT user and send me a message.
Am 11/06/15 um 19:42 schrieb john whelan:
> If you've been selected for a random sample, and it is a true random
> sample, passing the link to anyone else effectively contaminates the
> Random sampling is a mathematical technique that is used in surveys to
> draw conclusions based on a small sample that can be extrapolated to a
> larger population.
> By passing the link on the responses will be bias towards more
> experienced mappers who read the list, so to preserve the methodology
> the survey should only be completed by the person it was sent to.
> There was a discussion earlier in the list with a comment from Pierre
> saying it would be useful to run slightly different surveys with
> questions aimed at new mappers, mappers with some experience and very
> experienced mappers. I don't know if this survey is of that type.
> Cheerio John
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