Statistics in Psychology

timer Asked: Dec 16th, 2013

Question description

You’ve had the experience of reading a magazine or watching TV and you see an ad that says something along the lines of: “Why pay more when you can get the same relief for less? Independent tests prove that no brand is more effective than Hemmorid. So buy Hemmorid and you’ll be sitting pretty in no time.” Let’s assume that the “independent tests” truly were independent. Further, let’s assume that the testing that was done used accepted procedures for evaluating the effectiveness of Hemmorid. Let’s also assume that the statistics that were conducted to evaluate the effectiveness of Hemmorid were appropriate and were competently executed. Still, you should be skeptical about the claim in the ad that “independent tests prove that no other brand is more effective than Hemmorid.” 

 1. In what way might the ad’s claim be misleading?
 2. If you could ask the independent testers for the results of specific statistical tests – you can ask them to do any test that you feel would help you to evaluate their claim. You are free to ask for more than 1 type of test. What test or tests would you request and why?

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