{"title":"Impact evaluation of service programs: three flexible designs.","authors":"J Mckillip","doi":"10.1177/0193841x7900300107","DOIUrl":null,"url":null,"abstract":"","PeriodicalId":84714,"journal":{"name":"Evaluation quarterly","volume":"3 1","pages":"97-104"},"PeriodicalIF":0.0000,"publicationDate":"1979-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/0193841x7900300107","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Evaluation quarterly","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1177/0193841x7900300107","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}