Ellen Langer, a Social Psychologist at Harvard, and Her Colleague

Ellen Langer, a social psychologist at Harvard, and her colleague Judith Rodin examined the effects of perceived control on older adults in a residential care facility. What intervention did the experimental group receive?

A) A talk focused on daily self care and a package of personal hygiene products
B) A "pep talk" about making their own decisions and a houseplant they could tend
C) A letter from the staff at the facility and a mail-in survey
D) A talk focused on how the staff would help them with daily activities and a pass for an outing