Problem: What are some potential limitations for individuals who are older in participating in research? (Check all that apply) Vision and hearing loss can deter older adults from considering participation in research due to embarrassment about an inability to respond properly to research questions or participate in research activities. Fatigue and physical strain of participation may create barriers if travel and wait times are involved in research participation. Mobility and access to transportation can be impedances to research participation. All of the above None of the above