According to george vaillant's longitudinal studies, in middle age was more strongly related than intimacy to whether individuals would have an enduring and happy marriage at 75 to 80 years of age.

Which of the following is an example of how the principle of beneficence can be applied to a study employing human subjects? providing detailed information about the study and obtaining the subject's consent to participate. ensuring that the selection of subjects includes people from all segments of the population. ensuring that persons with diminished autonomy are protected. determining that the study has a maximization of benefits and a minimization of risks.