- 行业: Printing & publishing
- Number of terms: 178089
- Number of blossaries: 0
- Company Profile:
McGraw Hill Financial, Inc. is an American publicly traded corporation headquartered in Rockefeller Center in New York City. Its primary areas of business are financial, publishing, and business services.
An exact test for 2 x 2 contingency tables. It is used when the sample size is too small to use the chi-square test.
Industry:Health care
An experimental study in which subjects do not know the treatment they are receiving; investigators may also be blind to the treatment subjects are receiving; see also double-blind trial.
Industry:Health care
An experimental study that is designed to compare the therapeutic benefits of two or more treatments.
Industry:Health care
An exposure–disease association in which the risk of developing a disease varies with respect to the intensity or duration of exposure.
Industry:Health care
An illness that is caused by the ingestion of food or food products, often arising from contamination of the food with microbes or other toxic materials.
Industry:Health care
An indication of how well a test or scale predicts another related characteristic, ideally a "gold standard" if one exists.
Industry:Health care
