I don't have the "n's" for the 2 polls, but it doesn't take a rigorous test to see that these differences are very unlikely to be random sampling error.
Friday, February 12, 2010
Wording and Survey Design
It doesn't take much to make a poll on the same topic give very different results. Case in point:
I don't have the "n's" for the 2 polls, but it doesn't take a rigorous test to see that these differences are very unlikely to be random sampling error.
I don't have the "n's" for the 2 polls, but it doesn't take a rigorous test to see that these differences are very unlikely to be random sampling error.
Tuesday, February 9, 2010
Monday, February 8, 2010
How many passes
If you want to watch this link be very careful to pay very close attention. You are watching 3 white-shirted players and 3 dark-shirted players passing 2 balls (one ball per group). You have to pay close attention to who is passing which ball to whom, and try to count the number of times that a white-shirted player passes to another white-shirted player. In fact, people who are able to do this well are shown to have higher IQs and earn higher salaries. Are you one of those people? Are you ready? Remember count only the number of passes between the white players.
Click here.
(Video is publicly available for personal viewing, but copyrighted by Daniel J. Simons of Viscog Productions, Inc. and the University of Illinois)
Click here.
(Video is publicly available for personal viewing, but copyrighted by Daniel J. Simons of Viscog Productions, Inc. and the University of Illinois)
Sunday, February 7, 2010
Snowstorms and Supermarkets
This is a good first stab at explaining the strange inventory conditions in a supermarket during a storm, but I still think something is missing.
Random Links
1. The economists: coal is cheap and getting cheaper, so subsidize solar (note: they also support a carbon tax).
2. Trade is on the downturn. Does it matter that much?
3. Export-enhancing immigration.
4. Ronald Coase, still one of the best at age 99 (and I don't even hold the narrow-mindedness of the rest of the Chicago School against him).
5. Liberal arts education: a long-term investment.
6. If a corporation can have free speech, can it also run for office?
2. Trade is on the downturn. Does it matter that much?
3. Export-enhancing immigration.
4. Ronald Coase, still one of the best at age 99 (and I don't even hold the narrow-mindedness of the rest of the Chicago School against him).
5. Liberal arts education: a long-term investment.
6. If a corporation can have free speech, can it also run for office?
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