I live close to a University that does tons of studies. They actually have a website listing what kinds of people they need. I have never and will never do the ones where you are a lab rat for medicine and have no clue what you are taking. I have done one where I had to do a MRI while looking at pictures. Took 1 hour of my time, they paid for gas and parking, plus $200.00. I have also filled out a survey about sex for $25.00. DD is on a list for a study that is researching speech developement.

Check this out if you need extra cash.