What is an example of a precaution that psychological scientists can use when testing or applying a new protocol or technology that might help a vulnerable population?

What is an example of a precaution that psychological scientists can use when testing or applying a new protocol or technology that might help a vulnerable population?

 

 

use this source:

Dunn, L. B., Alici, Y., & Roberts, L. W. (2015). Ethical challenges in the treatment of cognitive impairment in aging. Current Behavioral Neuroscience Reports. https://doi.org/10.1007/s40473-015-0055-0