Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site ucsfcca.UUCP Path: utzoo!linus!philabs!cmcl2!seismo!harvard!talcott!panda!genrad!decvax!ucbvax!ucsfcgl!ucsfcca!rk9005 From: rk9005@ucsfcca.UUCP (Dick Karpinski) Newsgroups: net.nlang Subject: Re: "Controlled experiment": redundancy or retronym? Message-ID: <380@ucsfcca.UUCP> Date: Sat, 4-May-85 19:33:27 EDT Article-I.D.: ucsfcca.380 Posted: Sat May 4 19:33:27 1985 Date-Received: Thu, 16-May-85 21:24:14 EDT References: <477@utai.UUCP> Reply-To: rk9005@ucsfcca.UUCP (Dick Karpinski) Distribution: net Organization: UCSF Computer Center Lines: 19 Summary: Neither, rather exp. with controls (untreated subjects) In article <477@utai.UUCP> gh@utai.UUCP (Graeme Hirst) writes: >expression "controlled experiment". ("In one of the few controlled >... > Is this simply an egregious redundancy, similar to the popular "past >history", or is it a true retronym; that is, has the word "experiment" I would believe that "controlled experiment" deals with "controls" (people, animals, blocks of wood, ...) who get everything but the critical "treatment". It's a device for removing or detecting any bias in the procedure, albeit still an imperfect one. Dick ps Does this really get out to the net? -- Dick Karpinski Manager of Unix Services, UCSF Computer Center UUCP: ...!ucbvax!ucsfcgl!cca.ucsf!dick (415) 666-4529 (12-7) BITNET: dick@ucsfcca Compuserve: 70215,1277 Telemail: RKarpinski USPS: U-76 UCSF, San Francisco, CA 94143