Blind test, double

Double-blind test—Test in which neither the subjects nor the researchers know who is getting the new drug and who is getting the placebo or control drug. 

Kwon, P. H., Jr., Rorick, M. H. and Scrimshaw, N. S. 1980. Comparative tolerance of adolescents of differing ethnic background to lactose-containing and lactose-free dairy drinks. II. Improvement of a double-blind test. Am. J. Clin. Nutr. 33, 22-26. 

Double-blind tests - these are conducted under conditions where neither the recipient nor the person giving out the drug knows whether the medication is the test material or a placebo. 

Eill the feeders. The fifth feeder will be filled with untreated sunflower seeds. Eor a double-blind test, a person other than the field observers codes the feeders with letters A-E (or numbers) and safeguards the code. 

Canicave JC, Deu J, Jacq J, Paillet R. Un nouvel antiangor-eux, le bepridil appreciation de son efficacite par I epreuve d effort au cours d un essai a double insu centre placebo. [A new antianginal drug, bepridil efficacy estimation by exertion test during a double blind test against a placebo.] Therapie 1980 35(5) 607-12. 

Masaoka T, Shibata H, Ohno R, Katoh S, Harada M, Motoyoshi K, Takaku F, Sakuma A. Double-blind test of human urinary macrophage colony-stimulating factor for allogeneic and syngeneic bone marrow transplantation effectiveness of treatment and 2-year follow-up for relapse of leukaemia. Br J Haematol 1990 76(4) 501-5. 

Gupta K, Home R The influence of health beliefs on the presentation and consultation outcome in patients with chemical sensitivities. J Psychosom Res 50 131-137, 2001 King DS Can allergic exposure provoke psychological symptoms A double-blind test. Biol Psychiatry 16 3-19,1981... 

Much of our work is focused on the elucidation of the semiochemistry involved in the response of Asian bull elephants to urine of cows in estrus. The number of flehmen responses exhibited by a bull as the result of contact with female urine begins to increase about six weeks prior to ovulation (Hess et al., 1983), probably an indication that the stage of the estrous cycle and the impending receptivity of the female are being revealed to the males via specific chemical components of urine. We have exploited this dependable chemosensory response to develop a unique bioassay to guide chemical fractionation toward isolation and characterization of the responsible substance or substances. The bioassay developed has proved reliable in over 5000 double blind tests using three bulls during a period of four years. 

Suzuki, H., Y Ohta, T. Taking, K. Fujisawa, C. Hirayama, N. Shimizu, and Y Aso Effects of Stronger Neo-Minophagen C in Chronic Hepatitis, Assessment with Double Blind Test. Igaku no Ayumi (J. Clinical Exper. Med., Japan), 102, 562 (1977). 

Dan Shanefield, "Audio Equalizers," Stereo Review, May 1976, p. 64. Also, May 1996, p. 112. Dan Shanefield, "The Great Ego Crunchers Equalized Double-Blind Tests," High Fidelity, March 1980, p. 57 (available in most public libraries on microfilm). 2b p Lipshitz, et al., Jml. of Audio Engineering Society, Vol. 29 (1981) p. 482, particularly ref 27 (in university hbraries). Susan Blackmore, "The Meme Machine" (see N. Y. Times Book Review, April 25, 1999, p. 12). 

D. Radin, G. Hayssen, M. Emoto, T. Kizu, 2006. Double-Blind test of the effects of distant intention on water crystal formation. Explore, 2(5), 408-411. 

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