You can earn money by signing up to participate in clinical trials, drug tests and medical surveys. You will essentially be a human guinea pig, so this option is not for the faint-hearted!  Some medical tests may be completely harmless, while others have the risk of mild to severe side-effects. Make sure you know what you are getting yourself into before signing up for anything. Before participating in a medical trial you may be required to pass a physical exam to determine your eligibility. By donating blood plasma you can earn money while also doing something beneficial for society. You can expect to be paid around $30 for each blood plasma donation, but due to health hazards, most donation centers have a minimum waiting period between each donation. Do a quick search online to locate the nearest donation center or contact a local hospital. A focus group is a type of research conducted by marketing companies to evaluate a particular group's attitudes, beliefs, perceptions and opinions of a particular product, service or idea. Questions are asked in an interactive group setting where participants are free to talk with other group members.  You will need to fill out a survey to qualify for participation in a particular focus group. Focus groups can take anywhere from 30 minutes to 3 hours. Don't hold back. If you are invited to participate in a study, there is an expectation that you will speak your mind. You need to contribute your thoughts and opinions in an upfront manner.
الاختبارات الطبية والدراسات الاستقصائية.  التبرع ببلازما الدم.  المشاركة في مجموعات التركيز.