[PDF] Top 20 Sample size re estimation in paired comparative diagnostic accuracy studies with a binary response
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Sample size re estimation in paired comparative diagnostic accuracy studies with a binary response
... Table 2 β Mean sample size S.D., bias, coverage and RMSE of simulated sample sizes with varying interim sample size estimates and true levels of ππππ when πππ π΄ = 0.9, πππ π΅ = 0.81 and Pre[r] ... See full document
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Sample size re-estimation in paired comparative diagnostic accuracy studies with a binary response
... terim sample size re-estimation in treatment studies for continuous and normally distributed response var- iables [7β11], some of which provide mechanisms to maintain blinding in ... See full document
11
Sample size determination for a binary response in a superiority clinical trial using a hybrid classical and Bayesian procedure
... the estimation of these population parameters and natural prior distributions of plausible values of these parameters that should be incor- porated into the assessment of a trialβs ...underpowered studies ... See full document
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COVARIATES AND SAMPLE SIZE EFFECTS ON PARAMETER ESTIMATION FOR BINARY LOGISTIC REGRESSION MODEL
... One of the major applications of statistical modeling is estimating the population parameters from sample statistics. In regression modeling, there are two general methods of parameter estimation which are ... See full document
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On accuracy of upper quantiles estimation
... Several systems of summary statistics describing the proper- ties of a random sample have been developed. Based on dif- ferent principles they provide, in particular, the measures of location, dispersion, skewness ... See full document
9
On the Index of Repeatability: Estimation and Sample Size Requirements
... DOI: 10.4236/ojs.2019.94035 538 Open Journal of Statistics sessment and follow-up of patients with liver disease. Therefore, establishing the repeatability and the precision of ALT measurements as a diagnostic ... See full document
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Sample Size Calculations for Population Size Estimation Studies Using Multiplier Methods With Respondent Driven Sampling Surveys
... the sample size required for a simple random sample must be multiplied by a design effect (DEFF) to account for the RDS design ...some studies have found higher DEFFs [5-7,11]. The ... See full document
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Sample Size Calculations for Population Size Estimation Studies Using Multiplier Methods With Respondent Driven Sampling Surveys
... the sample size required for a simple random sample must be multiplied by a design effect (DEFF) to account for the RDS design ...some studies have found higher DEFFs [5-7,11]. The ... See full document
7
Small-study effects and time trends in diagnostic test accuracy meta-analyses: a meta-epidemiological study
... of accuracy is when zero counts occur in the two-by-two table; in such cases, sensitivity or specificity estimates are 0% or 100%, or the odds ra- tio estimate is ...prevents estimation problems, it does ... See full document
7
Urine BLCA-4 exerts potential role in detecting patients with bladder cancers: a pooled analysis of individual studies
... Preliminary studies have explored the diagnostic accuracy of urine BLCA- 4 in bladder cancer, but the results are ...the diagnostic role of urine ...eligible studies reported the ... See full document
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Improving search efficiency for systematic reviews of diagnostic test accuracy: an exploratory study to assess the viability of limiting to MEDLINE, EMBASE and reference checking.
... were re- corded in the ...population; diagnostic test (index test); and, in some of these cases, a published fil- ter for diagnostic studies or other restrictions ... See full document
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A simulation study of sample size for multilevel logistic regression models
... Simulation studies come with their own set of ...ple size at the individual and group level on the bias and accuracy of parameter ...on estimation of and inference about both the fixed effects ... See full document
10
Selecting a sample size for studies with repeated measures
... perform sample size calculation for t-tests, a variety of ANOVA, and regression ...of re- peated measures ...computes sample size and power for a wide var- iety of general linear ... See full document
8
Sample size determination for bibliographic retrieval studies
... The sample size calculations shown in this study suggest that search strategies developed in small journal subsets will be as good as those developed in larger collections of journals if there are a ... See full document
8
Prevalence of dysphagia in multiple sclerosis and its related factors: Systematic review and meta-analysis
... the studies conducted by objective ...6 studies by the objective ...1 studies, respectively, among the 6 ...the sample size in studies by the objective method was less than that ... See full document
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Follow up after sample size re estimation in a breast cancer randomized trial for disease free survival
... the sample size re-estimation being unplanned and our concern that the procedure would be viewed with ...of re-estimation overall descriptive data suggested a larger proportion ... See full document
9
Reducing decision errors in the paired comparison of the diagnostic accuracy of screening tests with Gaussian outcomes
... simulation studies demonstrated that the perfor- mance of the bias correction method depends on the amount of differential bias in the ...in studies comparing digital and film mammography, which have ... See full document
12
Segmentation and size estimation of tomatoes from sequences of paired images
... the size of the tomatoes remotely, all along their maturation (from flowers to ripe fruits), in order to detect any abnormal development and predict the yield of the ... See full document
23
Sample Size Estimation In Cohort Studies For Testing Of Relative Risk
... the accuracy of proposed sample size formula, sample size is calculated at different values of precision as well as various disease rates among the unexposed group ...previous ... See full document
7
A penalized likelihood estimation approach to semiparametric sample selection binary response modeling
... the response variable is Gaussian [5, 16, 11, 22, 25, ...the response is ...a sample selection binary response model are those presented in [8, 3, ...simultaneous) estimation of ... See full document
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