Im totally done with this place. Here are some but not all of their sneaky if not unethical techniques. They have you come to screen for a certain study only to be told the study has been canceled. They do this to fill their smaller less profitable studies. They tell you certain dates for the study on the phone then give you different dates for the study when you get there. (which doesnt help if your trying to squeeze a study in on vacation days from work) They dont inform you of all of the exclusion criteria for the study over the phone. (cavities,athletes foot etc) again this is a ploy to direct you to other studies they need to fill. They can care less how for you traveled or wasting your time and travel money. If youve never been there i would say avoid it if you can, i will. although they do run a lot of studies they are very dishonest and all about them. Place like will call you and tell you a study has been canceled, plus they pay 135.00 for screenings. Also if they do cancel, most likely you can call the next day and get a new study. They also tell all the exclusion criteria ahead of time. And they tell you the dates for your study and wont change them out of thin air. BEWARE OF PAREXAL...............DISHONEST AND UNPROFESSIONAL!!!!