Abstract
The Midlife in the United States (MIDUS Refresher): Cognitive Project, 2011-2014 collection includes data collected as part of the MIDUS Refresher study. The MIDUS Refresher study (2011-2014, ICPSR 36532 ) recruited a national probability sample of 3,577 adults, aged 25 to 74, designed to replenish the original MIDUS 1 baseline cohort and paralleling the five decadal age groups of the MIDUS 1 baseline survey ( ICPSR 2760 ). Participants in the MIDUS Refresher survey were recruited for the Brief Test of Adult Cognition via Telephone (BTACT) interview. All recruited participants who completed the initial telephone interview were invited to complete the questionnaires, and, whether or not they returned the questionnaires, were invited to participate in the Cognitive Interview. In addition to the national MIDUS Refresher sample, respondents to the MIDUS Milwaukee Refresher sample (see ICPSR 36722 ) were also eligible to participate in the BTACT interview. From February, 2012, through September, 2014, respondents completed the cognitive interview. For the Cognitive Project MIDUS Refresher BTACT data were collected from 2,763 MIDUS Refresher participants. The BTACT is the first comprehensive cognitive battery--including measures of speed and reaction time--to be administered by telephone to a national sample across the adult years and into later life. It includes seven subtests: word list recall immediate, word list recall delayed, backward digit span, number series, counting backward speed task, category fluency, and an attention switching reaction time task. The Refresher cognitive project provides a rich data set to examine individual differences in cognitive functioning with a diverse national sample in terms of age, sex, socioeconomic status (income, education) and geographical region. Demographic variables in this collection include sex and age.