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Non-randomized clinical trial is the clinical trial in which the series of consecutive patients receive a new treatment and those which respond (according to some of the pre-defined criterion) continue to receive it. Those patients who fail to respond receive an alternative, generally the conventional, treatment. The two set of groups are then compared on one or more results variables. One of the problems with such type of a procedure is that patients who respond might be healthier than those patients who do not respond, possibly resulting in an obvious but not real advantage of the treatment.
The tabulation of a sample of observations in terms of numbers falling below particular values. The empirical equivalent of the growing probability distribution. An example of such
The model which is applicable to the longitudinal data in which the dropout process might give rise to the informative lost values. Specifically if the study protocol specifies the
Graphical deception : Statistical graphics which are not as honest as they should be. It is relatively simple. To mislead the unwary with the graphical material. For instance, c
Quantile regression is an extension of the classical least squares from estimation of the conditional mean models to the estimation of the variety of models for many conditional q
MEANING ,IMPORTANCE AND RELEAVANCE OF SCATTER DIAGRAM
Captures recapture sampling : Another approach to a census for estimating the size of population, which operates by sampling the population number of times, identifying the individ
Hot deck is a method broadly used in surveys for imputing the missing values. In its easiest form the method includes sampling with replacement m values from the sample respondent
Clustered data : The term applied to both the data in which the sampling units are grouped into the clusters sharing some common feature, for instance families or geographical reg
Difference b/w historigram and histogram
what are all the organs
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