This webinar will discuss drop-out in living lab field tests. A living lab field test involves testing innovations in real-life contexts with voluntary participants. Key issues include ensuring participation continues throughout the study. Drop-out occurs when participants do not complete all tasks by the deadline. Factors influencing drop-out include problems with the innovation, how tasks are designed, and participants' circumstances. Recommendations to reduce drop-out include clearly communicating expectations and ensuring the test remains flexible and beneficial for participants. Ethical considerations include informed consent and protecting participants' interests.