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Each interview reflected a survey instrument/ questionnaire consisting of approximately 46 items. All respondents were asked approximately 31 questions to collect basic demographic information and address opinions concerning their experience with the Santa Ana WORK Center and their employment both before and after visiting the Center. The length of time to complete each telephone interview ranged from three to twenty -three minutes. The average survey completion time was eight minutes. A.1 Response Rate The SSRC's estimated response rate for this telephone survey is 71.20 %. This response rate is calculated using the American Association of Public Onion Researchers' (AAPOR) Response Rate Calculation Method 3 (RR3), which includes an estimate of eligibility among unscreened sample records based on the eligibility rate among respondents for whom a final determination could be made: N 1:m= (C +I) +(R +N) +eU Where C = complete interviews, I = incomplete interviews, R = eligible refusals, N = other eligible non - complete records, e = estimate of eligibility, and U = records with unknown eligibility. In this equation, eligible respondents include all individuals who responded at least to the initial screening questions, regardless of the result. The response rate should not be confused with the completion rate. Completion rates are generally considered as the number of completed interviews over the total sample size, including all potential respondents, eligible or not. The difference between response rates and completion rates is determined by the difference between the number of eligible and ineligible respondents. A total of 9,647 individual attempts were made to 2,477 telephone numbers to complete 415 interviews for the Santa Ana WORK Center. The last disposition of all sample records used is detailed in Table 1. Of the 9,647 telephone numbers attempted, 719 (29 %) numbers were ineligible because they were disconnected, temporarily out of service, determined to be fax machines or businesses. Another 508 (21.0°/x) numbers were ineligible because they did not meet the requirements to participate in the study, the contact could no longer be reached at that number, there was no eligible respondent, the quota was filled for that specific criteria or some other reason. Eligibility for participation it the study was unclear for 773 (31.2 %) numbers. These numbers were dispositioned a language problem, busy signal, no answer, answering machine, call blocking, incoherent, unqualified refusal and unqualified callback. 19F -316