Fixed-effects modeling of Cohen’s weighted kappa for bivariate multinomial data

2011 ◽  
Vol 55 (2) ◽  
pp. 1061-1070 ◽  
Author(s):  
Jingyun Yang ◽  
Vernon M. Chinchilli
Keyword(s):  
Fixed Effects ◽  
Weighted Kappa ◽  
Multinomial Data

scholarly journals Fixed-Effects Modeling of Cohen's Weighted Kappa for Bivariate Multinomial Data: A Perspective of Generalized Inverse

2011 ◽  
Vol 2011 ◽  
pp. 1-14
Author(s):  
Jingyun Yang ◽  
Vernon M. Chinchilli
Keyword(s):  
Fixed Effects ◽  
Generalized Inverse ◽  
Weighted Kappa ◽  
Small Sample ◽  
Kappa Statistics ◽  
Cohen’S Kappa ◽  
Multinomial Data ◽  
Cohen's Kappa ◽  
Bootstrap Simulation ◽  
Measuring Agreement

Cohen's kappa and weighted kappa statistics are the conventional methods used frequently in measuring agreement for categorical responses. In this paper, through the perspective of a generalized inverse, we propose an alternative general framework of the fixed-effects modeling of Cohen's weighted kappa, proposed by Yang and Chinchilli (2011). Properties of the proposed method are provided. Small sample performance is investigated through bootstrap simulation studies, which demonstrate good performance of the proposed method. When there are only two categories, the proposed method reduces to Cohen's kappa.

Reliability of the “Sydney,” “Sunnybrook,” and “House Brackmann” Facial Grading Systems to Assess Voluntary Movement and Synkinesis after Facial Nerve Paralysis

2005 ◽  
Vol 132 (4) ◽  
pp. 543-549 ◽  
Author(s):  
Susan E. Coulson ◽  
Glen R. Croxson ◽  
Roger D. Adams ◽  
Nicholas J. O'dwyer
Keyword(s):  
Facial Nerve ◽  
Fixed Effects ◽  
Voluntary Movement ◽  
Interobserver Reliability ◽  
Intraclass Correlation ◽  
Weighted Kappa ◽  
Facial Nerve Paralysis ◽  
Good Reliability ◽  
Nerve Paralysis ◽  
Exact Agreement

OBJECTIVE: To investigate the extent of within-system reliability and between-system correlation for the “Sydney” and “Sunnybrook” systems of grading facial nerve paralysis, and to examine the interobserver reliability and agreement of the “House Brackmann” grading system. STUDY DESIGN: A fixed-effects reliability study in which 6 otolaryngologists viewed videotapes of patients with facial nerve paralysis. SETTING: University and medical Centers. PATIENTS: Patients with unilateral lower motor neurone facial nerve dysfunction greater than 1 year after onset, none of whom had undergone surgical reanimation procedures. INTERVENTION: Twenty-one patients with facial nerve paralysis were videotaped while they performed a protocol of facial movements. Six otolaryngologists viewed the videotapes and scored them with the Sydney and Sunnybrook systems, and then gave a House Brackmann grade. MAIN OUTCOME MEASURE: The 3 systems of grading facial nerve paralysis were evaluated and compared with the use of intraclass correlation coefficients, Pearson's weighted kappa, and percentage exact agreement values. RESULTS: The Sydney and the Sunnybrook systems had good intrasystem reliability and high intersystem association for the assessment of voluntary movement. Grading of synkinesis was found to have low reliability both within and between systems. The House Brackmann system had substantial reliability as shown by weighted kappa but had a percentage exact agreement of 44%. CONCLUSIONS: For clinical grading of voluntary movement, there is good correlation between ratings given on the Sydney and Sunnybrook systems, and within each system there is good reliability. The assessment of synkinesis was far less reliable within, and less related between, systems. Although the reliability of the House Brackmann system was found to be high, examination of individual grades revealed some wide variation between trained observers.

Das Sozio-Oekonomische Panel als Datenbasis für die Arbeits- und Organisationspsychologie

2018 ◽  
Vol 62 (3) ◽  
pp. 111-125 ◽  
Author(s):  
Marco Giesselmann ◽  
Mila Staneva ◽  
Jürgen Schupp ◽  
David Richter
Keyword(s):  
Fixed Effects

Zusammenfassung. Der Beitrag zeigt die Analysepotentiale der repräsentativen Mikrodaten des Sozio-oekonomischen Panels (SOEP) für die Arbeits- und Organisationspsychologie (A/O-Psychologie) auf. Dabei werden allgemeine Charakteristika von Stichprobe und Erhebung des SOEP vorgestellt, sowie Konstrukte mit besonderer Relevanz für die Psychologie eingeführt. Zudem diskutieren wir Analysemethoden für Paneldaten, mit denen sich die Potentiale des SOEP realisieren lassen. Neben den Möglichkeiten des SOEP für Stabilitäts- und Verlaufsanalysen stellen wir die Potentiale längsschnittlicher Daten für kausale Analysen heraus. Dabei erläutern wir insbesondere die Analyselogik längsschnittlicher Fixed Effects Modellierungen und vergleichen diese mit weiteren längsschnittlichen Analyseverfahren. Wir argumentieren, dass bei Anwendung akkurater Methoden Teilaspekte der experimentellen Analyselogik auf Grundlage längsschnittlicher Surveydaten angenähert werden können. Folglich stellen die Daten des SOEP immer dann eine wertvolle Ressource für die A/O-Psychologie dar, wenn a) unabhängige Merkmale aus ethischen oder praktischen Gründen nicht systematisch manipuliert werden können, b) die Kernbefunde experimenteller Primärstudien auf Grundlage eines repräsentativen Samples repliziert werden sollen oder c) Interesse am langfristigen Verlauf eines Indikators besteht.

Cluster Analysis of Antigenic Profiles of Tumors: Selection of Number of Clusters Using Akaike’s Information Criterion

1990 ◽  
Vol 29 (03) ◽  
pp. 200-204 ◽  
Author(s):  
J. A. Koziol
Keyword(s):  
Cluster Analysis ◽  
Basic Problem ◽  
Information Criterion ◽  
Akaike's Information Criterion ◽  
Cell Surface Antigens ◽  
Number Of Clusters ◽  
Akaike’S Information Criterion ◽  
Multinomial Data ◽  
Tumor Types ◽  
Selection Of

AbstractA basic problem of cluster analysis is the determination or selection of the number of clusters evinced in any set of data. We address this issue with multinomial data using Akaike’s information criterion and demonstrate its utility in identifying an appropriate number of clusters of tumor types with similar profiles of cell surface antigens.

Bleeding Classification in Clinical Trials: Observer Variability and Clinical Relevance

1997 ◽  
Vol 78 (04) ◽  
pp. 1189-1192 ◽  
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.

Dampak Kebijakan Moneter Pada Output Di Negara-Negara ASEAN Tahun 1980-2014

2017 ◽  
Vol 4 (1) ◽  
pp. 58-70
Author(s):  
Nur Widiastuti
Keyword(s):  
Monetary Policy ◽  
Interest Rate ◽  
Fixed Effects ◽  
Empirical Studies ◽  
Negative Relationship ◽  
Least Square ◽  
Fixed Effects Model ◽  
State Data ◽  
Ordinary Least Square ◽  
The Impact

The Impact of monetary Policy on Ouput is an ambiguous. The results of previous empirical studies indicate that the impact can be a positive or negative relationship. The purpose of this study is to investigate the impact of monetary policy on Output more detail. The variables to estimatate monetery poicy are used state and board interest rate andrate. This research is conducted by Ordinary Least Square or Instrumental Variabel, method for 5 countries ASEAN. The state data are estimated for the period of 1980 – 2014. Based on the results, it can be concluded that the impact of monetary policy on Output shown are varied.Keyword: Monetary Policy, Output, Panel Data, Fixed Effects Model

Spatial regularities between non-immigrant and immigrant numbers in Canada

2014 ◽  
Vol 11 (1) ◽  
pp. 90-100
Author(s):  
Yigit Aydede
Keyword(s):  
Fixed Effects ◽  
Spatial Scales ◽  
National Scale ◽  
Pooled Data

The present study intends to reveal spatial regularities between non-immigrant and immigrant numbers in two different ways. First, it questions the existence of those regularities when spatial scales get finer. Second, it uses pooled data over four population censuses covering the period from 1991 to 2006, which enabled us to apply appropriate techniques to remove those unobserved fixed effects so that the estimations would accurately identify the linkage between local immigrant and non-immigrant numbers. The results provide evidence about the existence of negative spatial regularities between non-immigrant and immigrant numbers in Canada at national scale.

Analysis of Factors Affecting Capital Structure in Food and Beverage Manufacturing Company

2018 ◽  
Vol 1 (2) ◽  
pp. 1-14
Author(s):  
Nur Hajja Aini ◽  
St Habibah
Keyword(s):  
Capital Structure ◽  
Firm Size ◽  
Significant Influence ◽  
Fixed Effects ◽  
Random Effect Model ◽  
Manufacturing Companies ◽  
Business Risk ◽  
Growth Opportunities ◽  
Food And Beverage ◽  
The Capital Structure

The purpose of this research to analyze the influence of firm size, liquidity, growth opportunities, tangibility asset, and business risk to the capital structure of listed food and beverage manufacturing companies in Indonesia and Vietnam Stock Exchange from 2010 to 2016. The result shows that the fixed effects model should be appropriate for this study as compared to the random effect model. Capital structure significantly differences between the two countries. Firm size has a positive but insignificant influence on the capital structure in Indonesia, whereas it has a positive and a significant influence on the capital structure in Vietnam. Liquidity has a negative and significant influence on the capital structure both in Indonesia and Vietnam. Growth opportunities have a negative but insignificant influence on the capital structure both in Indonesia and Vietnam. Asset tangibility has a positive but insignificant influence on the capital structure in Indonesia, but it has the negative but insignificant influence on the capital structure in Vietnam. Ultimately, the business risk has a negative and significant influence on the capital structure in Indonesia but has a positive and insignificant influence on the capital structure in Vietnam.

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