International Day of Peace, Sept 21 2008 |
Many individuals wrote to suggest that September 21, the International Day of Peace, would be an appropriate event for the GCP to assess. We have looked at it in the past, and because it does inspire large numbers of people, we have again set the day as a formal event.
The GCP event was defined as the full GMT 24 hour day. There are local participatory celebrations all around the world, most at around noon. The graph shows small peaks and a couple of strong trends, but the final outcome is almost a null deviation. Chisquare is 86403.6 on 86400 df for p = 0.496 and Z = 0.010.
It is important to keep in mind that we have only a tiny statistical effect, so that it is always hard to distinguish signal from noise. This means that every "success" might be largely driven by chance, and every "null" might include a real signal overwhelmed by noise. In the long run, a real effect can be identified only by patiently accumulating replications of similar analyses.
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