Practice quiz: Common traps

4 questions. Pick an answer to see if it is right. You can try as many times as you like. These are for practice: the final test has different questions.

1. 1.Simmons et al. (2011) found that a few flexible analysis choices could raise the false-positive rate from 5% to about...

   6%10%61%100%
2. 2.You run 20 independent tests where nothing is really going on. How many 'significant' results do you expect at p < 0.05?

   NoneAbout oneAbout tenAll twenty
3. 3.What was the point of the dead salmon study?

   Salmon can thinkWithout correcting for many tests, you can find 'effects' in noiseBrain scanners don't workFish need ethics approval
4. 4.In the Berkeley admissions data, why was the overall rate lower for women?

   Every department rejected women moreWomen applied more to highly competitive departmentsThe data was wrongFewer women applied