An Experiment in Beer-tasting*

An experiment in Beer-tasting.

An experiment in beer tasting among 18 first year pre-clinical students showed that only two appeared to be able to discriminate light from bitter ale correctly. As a whole the group did worse than would be expected by guessing at random on each tasting trial. Some psychological biases, one possibly as a result of the design, are indicated by the results and a possible remedy suggested. The dan...

Animal Rights Consideration is a Necessity in Conducting an Experiment

CONFERENCES : A CAll TO EXPERIMENT by Stafford Beer

Editorial note: Stafford Beer is a leading pro1essor ofcybernetics and operations research currently associated with universities in Britain and the USA. As an international consultant he is noted, amongst many other achievements, for his work on a comprehensive economic information system for Chile under President Allende. Amongst a number ofbooks, one of wide interest, entitled« Platform for ...

Apple Tasting

We use two transformations to relate the apple tasting model to an enhanced standard model where false acceptances are counted separately from false rejections. We apply our results to obtain a good generalpurpose apple tasting algorithm as well as nearly optimal apple tasting algorithms for a variety of standard classes, such as conjunctions and disjunctions of n boolean variables. We also pre...

An Introduction to Natural Experiment Studies

در دو سخن سردبیری شماره‌های قبل به مطالعات مداخله‌ای (Interventional and/or experimental studies) [1] و مطالعات نیمه تجربی (studies Quasi-experiment) [2] پرداختیم. همان جا، به این نکته اشاره کردیم که برای اندازه‌گیری کارآیی یک دارو، واکسن، برنامه بهداشت عمومی و متغیرهای دیگری از این دست، مطالعات مداخله‌ای بهترین گزینه هستند. تقسیم تصادفی و کورسازی از مؤلفه‌های اساسی یک مطالعه مداخله‌ای است [1]....