Researchers at Columbia University are conducting a confidential study on heterosexual adults who have met sexual partners online.

Complete a 3 to 5 minute screening questionnaire to see if you qualify. Just for doing so, you can choose to enter a raffle for a $250 VISA check card (for online use)!

 

If you qualify, and if you complete this study, you will be given a $75 VISA check card (for online use) for your participation.