منابع مشابه
Incidental Findings: The Importance of Pretest Counseling
Researchers at the University of Bourgogne in Dijon, France surveyed French geneticists who were members of the "Association Français des Généticiens" on incidental findings (IF) found on array-based comparative genomic hybridization (aCGH) technology retrospectively over a seven-year period.
متن کاملPower in randomized group comparisons: the value of adding a single intermediate time point to a traditional pretest-posttest design.
Adding a pretest as a covariate to a randomized posttest-only design increases statistical power, as does the addition of intermediate time points to a randomized pretest-posttest design. Although typically 5 waves of data are required in this instance to produce meaningful gains in power, a 3-wave intensive design allows the evaluation of the straight-line growth model and may reduce the effec...
متن کاملPretest probability assessment derived from attribute matching
BACKGROUND Pretest probability (PTP) assessment plays a central role in diagnosis. This report compares a novel attribute-matching method to generate a PTP for acute coronary syndrome (ACS). We compare the new method with a validated logistic regression equation (LRE). METHODS Eight clinical variables (attributes) were chosen by classification and regression tree analysis of a prospectively c...
متن کاملPretest-posttest designs and measurement of change.
The article examines issues involved in comparing groups and measuring change with pretest and posttest data. Different pretest-posttest designs are presented in a manner that can help rehabilitation professionals to better understand and determine effects resulting from selected interventions. The reliability of gain scores in pretest-posttest measurement is also discussed in the context of re...
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The improved estimator of the variance in the general linear model is presented under an asymmetric linex loss function.
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ژورنال
عنوان ژورنال: Теория вероятностей и ее применения
سال: 1999
ISSN: 0040-361X
DOI: 10.4213/tvp775