You probably know that sites like Facebook are using the information they have about you – like your age, gender and interests – to serve up ads that are most likely to appeal to you. That’s a little bit harmless and perhaps even helpful. But how about the more subtle filtering that is going on [...]
In episode 168 I discussed reliability but the real test of a test’s “mettle” – or how confident you can be in the results – comes when you subject it to lots of validity tests. You’ll learn a lot about validity if you take a psychology class. High validity is what separates the many fun-to-take [...]
