The bioethical principle of respect for persons requires that individuals participating in research studies are provided with sufficient information to allow them to make autonomous and informed decisions. In general, the process of informed consent requires that investigators disclose pertinent information regarding procedures to be performed, risks, and benefits, etc, in a manner that participants can understand. In most cases, this information is reinforced by having the study participant or parent/guardian read a consent document, which is then signed to authorize participation.
Tait AR, Voepel-Lewis T. Digital MultimediaA New Approach for Informed Consent?. JAMA. 2015;313(5):463-464. doi:10.1001/jama.2014.17122