Title of article :
Contacting participants for follow-up: how much effort is required to retain participants in longitudinal studies?
Author/Authors :
Robert B. Cotter، نويسنده , , Jeffrey D. Burke، نويسنده , , Magda Stouthamer-Loeber، نويسنده , , ROLF LOEBER، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2005
Keywords :
Longitudinal research , Participant tracking , Difficult subjects , Participant retention , Cost analyses , Selective attrition
Journal title :
Evaluation and Program Planning
Journal title :
Evaluation and Program Planning