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<p class="MsoNormal"><span style="color:windowtext;mso-fareast-language:EN-US">I’ll join also the support of a sample, but I wouldn’t go for random. Going back to the study that Nama did (with bits of help from me), we started from the analysis of the planet
file to have classifications of participants, then used the username to invite people through mapper-to-mapper communication. The reason that you need to follow a more stratified sampling is participation inequality (that’s why I’m going on and on about it
- <a href="https://www.ubiquitypress.com/site/chapters/10.5334/bax.c/">https://www.ubiquitypress.com/site/chapters/10.5334/bax.c/</a> ) – because there is such a tiny group of heavy contributors, without a targeted sampling, it’s very likely to miss them…<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:windowtext;mso-fareast-language:EN-US">Muki
<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="color:windowtext">From:</span></b><span lang="EN-US" style="color:windowtext"> Tim Elrick [mailto:osm@elrick.de]
<br>
<b>Sent:</b> 06 December 2017 23:23<br>
<b>To:</b> osmf-talk@openstreetmap.org<br>
<b>Subject:</b> Re: [Osmf-talk] Surveys<o:p></o:p></span></p>
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<p class="MsoNormal">I want to second Thomas here. To avoid unwanted biases the best would be to send out an e-mail to a random sample of all registered mappers. In case, we are only interested in active mappers, we could limit this to a somehow defined active
mode (e.g. 'has mapped at least once last year'), but still should approach them by e-mail. I cannot tell, however, whether this would conflict with OSM's intention or some national laws not to send out unsolicited e-mails.<br>
I want to offer to volunteer drafting a survey as well, if needed, as I already have some experience with academic surveys.<br>
<br>
Tim<br>
<br>
Am 06.12.2017 um 16:05 schrieb Thomas Gertin:<o:p></o:p></p>
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<pre>That is an interesting idea of putting notices for a survey into the<o:p></o:p></pre>
<pre>desktop editors. However, I don’t think that would be my top choice if<o:p></o:p></pre>
<pre>I were to design a survey for OSM.<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>I think that surveying a random sample of the population is extremely<o:p></o:p></pre>
<pre>important. It is important not to risk introducing unintentional or<o:p></o:p></pre>
<pre>intentional biases in the survey.<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>My naive assumption is that a survey advertised within the desktop<o:p></o:p></pre>
<pre>editors would result in a higher participation rate from advanced<o:p></o:p></pre>
<pre>mappers and from OSM users who maintain more active ties within the<o:p></o:p></pre>
<pre>community. It would difficult to measure and correct for these biases<o:p></o:p></pre>
<pre>(and potentially others). In addition, this could introduce issues<o:p></o:p></pre>
<pre>with the validity of the results.<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>We need to be wary of designing surveys where people self-select<o:p></o:p></pre>
<pre>themselves to participate.<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>-Tom G<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>On Wed, Dec 6, 2017 at 2:40 PM, Michael Reichert <a href="mailto:nakaner@gmx.net"><nakaner@gmx.net></a> wrote:<o:p></o:p></pre>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<pre>Hi,<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>Am 06.12.2017 um 16:16 schrieb Simon Poole:<o:p></o:p></pre>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<pre>The main problem with this (again broken record mode) and really ages<o:p></o:p></pre>
<pre>old issue, is that we do not ask sign ups for permission to send them<o:p></o:p></pre>
<pre>unsolicited mail in any form.<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>The problem is not terribly difficult to fix, just nobody that has<o:p></o:p></pre>
<pre>proposed to do a survey (and there have been dozens and dozens over the<o:p></o:p></pre>
<pre>years) , has actually had enough interest to either fix the issue<o:p></o:p></pre>
<pre>themselves or pay somebody to do so.<o:p></o:p></pre>
</blockquote>
<pre><o:p> </o:p></pre>
<pre>If a survey should be answered by active mappers, notifications in their<o:p></o:p></pre>
<pre>editor would be a way to reach even more than using third-party news<o:p></o:p></pre>
<pre>services like Wochennotiz and WeeklyOSM. JOSM has a message of the day<o:p></o:p></pre>
<pre>feature as long as I can remember. iD is usually used from osm.org, i.e.<o:p></o:p></pre>
<pre>a message (top left corner) on osm.org for logged-in users could reach<o:p></o:p></pre>
<pre>mappers using iD. This would also reach users who use Potlatch 2. Only<o:p></o:p></pre>
<pre>mobile editors are not reachable. I myself think that popus with the<o:p></o:p></pre>
<pre>latest news are more annoying than helpful in mobile apps.<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>To summarize it, we can reach mappers using desktop editors already.<o:p></o:p></pre>
<pre>There are only two groups which are unreachable: mobile-only mappers and<o:p></o:p></pre>
<pre>inactive mappers. If I were an inactive mapper, I would find it annoying<o:p></o:p></pre>
<pre>to get an email asking to contribute to a survey.<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>Best regards<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>Michael<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>--<o:p></o:p></pre>
<pre>Per E-Mail kommuniziere ich bevorzugt GPG-verschlüsselt. (Mailinglisten<o:p></o:p></pre>
<pre>ausgenommen)<o:p></o:p></pre>
<pre>I prefer GPG encryption of emails. (does not apply on mailing lists)<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre><o:p> </o:p></pre>
<pre>_______________________________________________<o:p></o:p></pre>
<pre>osmf-talk mailing list<o:p></o:p></pre>
<pre><a href="mailto:osmf-talk@openstreetmap.org">osmf-talk@openstreetmap.org</a><o:p></o:p></pre>
<pre><a href="https://lists.openstreetmap.org/listinfo/osmf-talk">https://lists.openstreetmap.org/listinfo/osmf-talk</a><o:p></o:p></pre>
<pre><o:p> </o:p></pre>
</blockquote>
<pre><o:p> </o:p></pre>
<pre>_______________________________________________<o:p></o:p></pre>
<pre>osmf-talk mailing list<o:p></o:p></pre>
<pre><a href="mailto:osmf-talk@openstreetmap.org">osmf-talk@openstreetmap.org</a><o:p></o:p></pre>
<pre><a href="https://lists.openstreetmap.org/listinfo/osmf-talk">https://lists.openstreetmap.org/listinfo/osmf-talk</a><o:p></o:p></pre>
<p><o:p> </o:p></p>
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