Ebersole and Hess’ Toward Healthy Aging 10th Edition Touhy Test BankMULTIPLE CHOICE 1. Serious and well-controlled research studies on aging have been available: a. only in the past 60 years. b. since the turn of the 20th century. c. following the Great Depression. d. since the year 2000. ANS: A Only in the past 60 years have serious and carefully controlled research studies flourished. Before that, anecdotal evidence was used to illustrate issues assumed to be universal, making all t...