Simple fix: "We're conducting a scientific study on mood for the next three months. Would you mind participating? The study won't require you to do anything sp

Simple fix: "We're conducting a scientific study on mood for the next three months. Would you mind participating? The study won't require you to do anything special or take any further action. Y/N?" There we go kids, easy as pie; it's called consent to participate! Pretty easy to do without spilling the beans on the study.