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UAS 227 - Response Overview
Size of selected sample
Completed the survey
Started but did not complete the survey
Did not start the survey
Two samples were used for this survey: 1) an initial sample of a random selection of active respondents who did not participate in the Dual mode study; and 2) a custom selection of active English speaking respondents aged 60 and older. The two samples can be differentiated by the supplement variable in the data set.