A FORTRAN PROGRAM FOR COMPUTING THE EXACT VARIANCE OF WEIGHTED KAPPA

An algorithm and associated FORTRAN program are provided for the exact variance of weighted kappa. Program VARKAP provides the weighted kappa test statistic, the exact variance of weighted kappa, a Z score, one-sided lower- and upper-tail N(0,1) probability values, and the two-tail N(0,1) probability value.

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Exact Permutation Probability Values for Weighted Kappa

Psychological Reports ◽

10.2466/pr0.102.1.53-57 ◽

2008 ◽

Vol 102 (1) ◽

pp. 53-57 ◽

Cited By ~ 3

Author(s):

Kenneth J. Berry ◽

Janis E. Johnston ◽

Paul W. Mielke

Keyword(s):

Weighted Kappa ◽

Tail Probability ◽

Fortran Program ◽

Test Statistic ◽

Kappa Test

A permutation algorithm and associated FORTRAN program are provided for weighted kappa. Program EWK provides the weighted kappa test statistic and the exact one-sided upper-tail probability values.

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Resampling Permutation Probability Values for Weighted Kappa

Psychological Reports ◽

10.2466/pr0.103.2.467-475 ◽

2008 ◽

Vol 103 (2) ◽

pp. 467-475 ◽

Cited By ~ 1

Author(s):

Janis E. Johnston ◽

Kenneth J. Berry ◽

Paul W. Mielke

Keyword(s):

Weighted Kappa ◽

Tail Probability ◽

Fortran Program ◽

Test Statistic ◽

Kappa Test

A permutation algorithm and associated FORTRAN program are provided for resampling weighted kappa. Program RWK provides the weighted kappa test statistic and the resampling one-sided upper-tail probability value.

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SIGMAL: A Program for Calculating L-Shell lonization Cross-Sections

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100097600 ◽

1981 ◽

Vol 39 ◽

pp. 198-199 ◽

Cited By ~ 3

Author(s):

R.F. Egerton

Keyword(s):

Cross Sections ◽

Fortran Program ◽

Absorption Data ◽

X Ray ◽

Atomic Electrons ◽

Energy Dependent ◽

Hydrogenic Model ◽

Electron Energy Loss ◽

X Ray Absorption ◽

Shell Ionization

SIGMAL is a short (∼ 100-line) Fortran program designed to rapidly compute cross-sections for L-shell ionization, particularly the partial crosssections required in quantitative electron energy-loss microanalysis. The program is based on a hydrogenic model, the L1 and L23 subshells being represented by scaled Coulombic wave functions, which allows the generalized oscillator strength (GOS) to be expressed analytically. In this basic form, the model predicts too large a cross-section at energies near to the ionization edge (see Fig. 1), due mainly to the fact that the screening effect of the atomic electrons is assumed constant over the L-shell region. This can be remedied by applying an energy-dependent correction to the GOS or to the effective nuclear charge, resulting in much closer agreement with experimental X-ray absorption data and with more sophisticated calculations (see Fig. 1 ).

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Bleeding Classification in Clinical Trials: Observer Variability and Clinical Relevance

Thrombosis and Haemostasis ◽

10.1055/s-0038-1657713 ◽

1997 ◽

Vol 78 (04) ◽

pp. 1189-1192 ◽

Cited By ~ 22

Author(s):

Yvonne P Graafsma ◽

Martin H Prins ◽

Anthonie W A Lensing ◽

Rob J de Haan ◽

Menno V Huisman ◽

...

Keyword(s):

Major Bleeding ◽

Clinical Relevance ◽

Area Under The Curve ◽

Weighted Kappa ◽

Clinical Severity ◽

Minor Bleeding ◽

Recent Trial ◽

Bleeding Episodes ◽

The Impact ◽

Adjudication Committee

SummaryTo evaluate the bleeding classification in a recent trial on venous thrombosis treatment, a selection of reported bleeding episodes was adjudicated twice by an independent committee and graded by the treating physician and independent clinical experts on the clinical severity and impact on the patient’s life.The kappa values for the dichotomy major bleeding versus minor or no bleeding were 0.79 (95% CI, 0.57-1.0) for the agreement between the two members of the adjudication committee and 0.77 (95% CI, 0.52-1.0) for the agreement between both adjudication sessions. The kappa values for the dichotomy major or minor bleeding versus no bleeding were 0.42 and 0.44. The weighted kappa values for the agreement between the treating physician and the independent experts were 0.76 for the Clinical severity and 0.79 for the impact on the patient’s life (95% CI, 0.63-0.88 and 0.70-0.89). The association between the adjudication result expressed as major bleeding or minor or no bleeding and the Clinical grading by the treating physician resulted in an ROC curve with an area under the curve of 0.98 for the Clinical severity and 0.99 for the impact on the patient’s life. The dichotomy major or minor bleeding versus no bleeding resulted in areas under the curve of 0.70 and 0.66.In conCIusion, the applied criteria for major bleeding are reproducible and Clinically relevant. The criteria for minor bleeding are not reproducible and are less associated with the observed Clinical relevance.

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