Table 1.

Information collected in survey questionnaire and baseline screening in-person interview

Survey information

Demographic data Nature and frequencies of social, cognitive, and physical activities Self-rated health 3-Item loneliness measurement [18] Older Americans resources and services, activities of daily living, and instrumental activities of daily living [19] Brief questions on Internet and personal computer usage: (1) “Do you use a personal computer?” (yes/no). If yes, the subject was asked where (check all that apply: at home, at the library, at a senior center/community center, at a friend's or relative's house, other [write in]); how often (less than once a year, a few times a year, a few times a month, a few times a week, almost every day); and for what (check all that apply: send/receive e-mail, make documents, browse websites for information, shopping, Facebook or other social network sites, games, video chat (Skype, etc.), and other [write in]). Willingness (yes/no) to participate in the future clinical trial (after a brief explanation of the prevention study protocol) and provide contact information if willing to be contacted (described in detail in Dodge et al [20]).

Baseline interviews (subjects selected from those who had provided contact information in the survey)

Demographic information (confirming answers listed in the survey questionnaire) NEO Big-5 personality inventory [21] Geriatric depression scale, 15-item scale [22] Clinical dementia rating scale [23] Informant contact information to complete the clinical dementia rating scale List of current prescription and over the counter medications Neuropsychological assessment (mini mental state examination [24], category and letter fluency tests [25], Consortium to Establish a Registry for Alzheimer's Disease word list learning and recall [26], trail making tests A and B [27], Stroop test [25], wide range achievement test-revised [28], computer assessment of mild cognitive impairment computerized test [29], 3 subitems from Cogstate computerized test [30]) Feedback on computerized tests (fatigue, easiness to follow, preference for Computer Assessment of Mild Cognitive Impairment versus Cogstate, after these tests)