Most scientific research studies require that you first complete a pre-qualifying process.
Each study has its own specific hypothesis, or preliminary idea, that needs to be proven before it is accepted as fact. The scientist usually has very specific guidelines that must be met by each study participant in order to prove his idea. The initial questionnaire is created to help eliminate volunteers who do not meet those specific guidelines.
For instance: the volunteer’s address might not be in close proximity to the study site, making travel difficult and multiple trips impossible; the person’s age might not be within the study protocol; the volunteer may have another illness that might influence outcome data in a negative way.
So if you are asked to fill out a questionnaire and are informed that, based on your answers, you do not qualify for the study, it simply means that your answers did not meet the guidelines set up for that particular investigation. Keep in mind that your specific criteria might match the guidelines for another study perfectly! Return to this site periodically to check out other studies in need of volunteers.
Please be advised that once you click onto the study banner, you will leave the NFA website. We offer these electronic linkages for your convenience—but be aware that when you exit our websites to visit others, their privacy policies may not be the same as ours.