Make a Difference, Sign up for a Study Today! Your participation in a clinical research study can make a world of difference for the people who need it most. Help us make a difference in medical science. Enroll in a Study Current Studies Study # 51923 Smoker Men & Women , ages 22 - 65 years old. Compensation up to $6,050 This study will consist seven-day in-house stay, two separate overnight stays and two follow-up outpatient return visits See Details Join Waitlist Study # 51123 Healthy, Non-smoker In general, good health , ages 18 - 50 years old. Compensation up to $4,450 This study will consist three separate, three-day in-house stays, plus one outpatient visit See Details Join Waitlist Study # 40421 Healthy, Non-smoker A man or woman, in overall good health , ages 18 - 55 years old. Compensation up to $4,000 for study-related time and travel This study will consist a four-day in-house stay, return visits and a follow-up phone call See Details Join Waitlist Study # 36721-Study is Full Healthy, Smoker/Non-Smoker Man and/or Woman , ages 18 - 50 years old. Compensation up to $4,125 This study will consist This study will consist of multiple outpatient visits and telephone contacts See Details Join Waitlist Get Started Today Step 1: APPLY Apply New Participants: Please fill out this formReturning Participants or those who have already filled out a form: Call a Recruiting Coordinator at (417) 831-2048. Step 1: APPLY Step 2: ENROLL Enroll Review upcoming studies.Call a Recruiting Coordinator for a pre-screening assessment at (417) 831-2048. Step 2: ENROLL Step 3: PARTICIPATE Participate Learn all about the QPS study process. Step 3: PARTICIPATE Step 4: GET PAID Get Paid Stipends are typically paid five working days after the study completion. Payment is loaded onto a prepaid debit card. Step 4: GET PAID Make a Difference…Make Money Doing It. Fill out an application today!