Determination of the optimum Period of interview for retrospective collection of data


On the basis of reported and documented data on outpatient contacts of depressive patients, the reliability of data on the use of services, and the possibilities and sources of errors in the retrospective collection of data are presented and discussed. The results show an increase in errors the longer the period of inquiry is removed from the time of… (More)
DOI: 10.1007/BF00380954


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