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If participants will be provided the choice to opt in or out of certain research elements, consent for those should be sought separately from overall study participation. Clearly indicate that participants can still participate in the study if they do not consent to the optional elements.
Due to the nature of the research question and the need to test interventions that operate at the population level, some population and public health studies cannot be done with prior informed consent.
Voluntary (free) consent means that individuals are free to choose to take part in a research study. They should make this choice without coercion or undue inducement. They are also free to refuse to participate.
In specific situations it may be necessary to make an exception to the general rule of informed consent for scientific research with an intervention. Earlier reviews only described subsets of arguments for exceptions to waive consent. Here, we ...
May 5, 2021 · All prospective participants must have the opportunity to give informed consent before entering a research project (see TCPS2 (2018) Chapter 3); however, a signed consent form is not always necessary (TCPS2 (2018) Articles 3.12 and 10.2).
Consent to participate in a research study should be understood as a process rather than an event. Researchers should plan for and articulate the steps by which consent is initially obtained and the steps by which it is reviewed throughout the study.
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Who can obtain informed consent from research participants? A member of the study staff must obtain consent. This may be the principal investigator or designate. Consideration must be given to possible coercion by virtue of pre-existing relationships (i.e., physician-patient, professor-student).
