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...Document resume ed ir author lord harold g title ex post facto studies as a research method special report no institution syracuse city school district n y spons agency bureau of education for the handicapped drew oe washington d c media services and captioned films branch pub date jul contract oec note p supporting computer based project evaluation related documents see edrs price mf hc plus postage descriptors comparative analysis statistics control groups correlation design methodology statistical identifiers beh handicapp quasi experimental abstract this paper presents causal or an alternative to classical methods establishing relationships between events circumstances h literature survey conducted in effort define describe is discussed following presentation relationship both strengths weaknesses designs are detailed wdr july expost employing sometimes impractical prohibitively costly time money other instances it unethical immoral outlined relation ships was surveyed also dis cus...