Control group, Advanced Statistics

In the experimental studies, the collection of individuals to which the experimental process of interest is not applied. In the observational studies, most often used for a collection of individuals not subjected to the risk factor under the investigation. In various medical studies the controls are drawn from the same clinical source as the cases to ensure that they represent the same catchment population and are subject to similar selective factors. These would be termed as, the hospital controls. An alternative is to use control measures taken from the population from which the cases are drawn. The latter is suitable if the source population is well de?ned and the cases are representative of cases in this population.

Posted Date: 7/27/2012 1:01:48 AM | Location : United States







Related Discussions:- Control group, Assignment Help, Ask Question on Control group, Get Answer, Expert's Help, Control group Discussions

Write discussion on Control group
Your posts are moderated
Related Questions
Likert scales is often used in the studies of attitudes in which the raw scores are based on the graded alternative responses to each of a series of queries. For instance, the sub

The plot of the number of cases of the disease against the time period. A large and sudden increase corresponds to an epidemic. The example of this is shown in the figure drawn bel

Paul Jordan has just been hired as a management analyst at Digital Cell Phone Inc. Digital Cell manufactures a broad line of phones for the consumer market. Paul's boss, John Smith

Consider a decision faced by a cattle breeder. The breeder must decide how many cattle he should sell in the market each year and how many he should retain for breeding purposes. S

Maximum likelihood estimation is an estimation procedure involving maximization of the likelihood or the log-likelihood with respect to the parameters. Such type of estimators is

Occam's razor  is an early statement of the parsimony principle, which was given by William of Occam (1280-1349) namely 'entia non sunt multiplicanda praeter necessitatem'; which m

The graphical process most frequently used in the analysis of data from a two-by-two crossover design. For each of the subject the difference between the response variable values o

Personal probabilities : A radically special approach for allocating probabilities to events than, for instance, the commonly used long-term relative frequency approach. In this ty

Consolidated Standards for Reporting Trials (CONSORT) statement : The protocol for reporting the results of the clinical trials. The core contribution of the statement comprises of

Computer-aided diagnosis : The computer programs which are designed to support clinical decision making. In common, such systems are based on the repeated application of the Bay