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Organisation

Interuniversity Graduate School of Psychometrics and Sociometrics

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Part of Universiteit Leiden
Acronym IOPS
Address Wassenaarseweg 52, 2333 AK Leiden
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Postal address Postbus 9555, 2300 RB Leiden
Phone +31-71-5273829
Fax +31-71-5273619
URL http://www.iops.nl
Email iops -at- iops. nl
Mission Advanced dissertation training in psychometrics and sociometrics. Coordinating Dutch research in psychometrics and sociometrics.

People

Professor Prof.dr. J. de Boer
Management Prof.dr. W.J. Heiser

Current research

(the most recent research is at the top)
Collaboration Validity of psychological questionnaires
Collaboration Stepwise model-fitting approaches for latent class analysis and related methods
Secretariat Heterogeneity in studies with discrete-time survival endpoints: Implications for optimal designs and statistical power analysis
Secretariat Investigation of statistical properties of proper ways to combine the nonresponse model and the outcome model for drawing imputations
Secretariat Comparing rating and ranking procedures for the measurement of values in surveys
All current research..

Completed research

(the most recent research is at the top)
Collaboration Infeasibility and optimal test design
Collaboration Statistical model identification in electromagnetic source analysis
Collaboration Inequality Constrained Normal Linear Models
Collaboration Differential item functioning (DIF) under non parametric item response models
Collaboration Latent structure models with qualitative and quantitative latent variabels
All completed research..

Classification

D51000 Psychology
D61000 Sociology

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