Correlation Coefficients: Mean Bias and Confidence Interval Distortions
نویسندگان
چکیده
منابع مشابه
Bravais-Pearson and Spearman correlation coefficients: meaning, test of hypothesis and confidence interval.
many other biomedical journals dealing with cancer research, often publishes papers whose principal aim it is to test the association between quantative measurements of biological variables. When these are expressed on continuous scales, the statistics most frequently adopted to test their association are the Bravais-Pearson (parametric) and the Spearman (non-parametric) correlation coefficient...
متن کاملConfidence interval approach for evaluating bias in laboratory methods
A statistically significant difference in mean values between two laboratory quantitation methods is interpreted as a bias. Sometimes such a difference is so minute that it does not constitute any practical concern. An alternative approach is to test statistically whether the two methods are close enough, not for equality. This is to look at the confidence interval of the mean method difference...
متن کاملUsing small bias nonparametric density estimators for confidence interval estimation
Confidence intervals for densities built on the basis of standard nonparametric theory are doomed to have poor coverage rates due to bias. Studies on coverage improvement exist, but reasonably behaved interval estimators are needed. We explore the use of small bias kernel-based methods to construct confidence intervals, in particular using a geometric density estimator that seems better suited ...
متن کاملA Procedure for Building Confidence Interval on the Mean of Simulation Output Data
One of the existing methods to build a confidence interval (c.i.) for the mean response in a single steady state simulation system is the batch means method. This method, compared to the other existing methods (autoregressive representation, regenerative cycles, spectrum analysis, standardized time series), is quite easy to understand and to implement and performs relatively well. However, the ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Methods and Measurement in the Social Sciences
سال: 2011
ISSN: 2159-7855
DOI: 10.2458/v1i2.114