id author title date pages extension mime words sentences flesch summary cache txt work_zuadggqe6jepza3agcez3tits4 Richard Scheines The Similarity of Causal Inference in Experimental and Non‐experimental Studies 2005 .pdf text/html 29 8 -15 Carnegie Mellon University research repository Browse Browse Discover research from Carnegie Mellon University Follow AllCategoriesgroupsSEARCH Hide footerAboutHow to DepositPreparing DataDMP ToolDeposit SupportContactDeposit AgreementTermsPrivacyToolsFAQsDisclaimerSitemap figshare. credit for all your research. ./cache/work_zuadggqe6jepza3agcez3tits4.pdf ./txt/work_zuadggqe6jepza3agcez3tits4.txt