Tilburg University Department of Methodology and Statistics
Tilburg, 5000 LE (Noord-Brabant), 38 hours per week
Job description
TITEL PROJECT
Test Construction Using Marginal Models
PHD PROJECT.
Core of the project: This project is mainly concerned with statistical modelling, matrix algebra, programming and data analysis.
Content description: Mokken scale analysis is an important statistical tool for the construction of psychological tests and multi-item questionnaires as they are used commonly in sociology, marketing and health-related quality of life measurement. Until recently, for important parts of the method statistical significance tests were unavailable, but Van der Ark, Croon, and Sijtsma (Psychometrika, in press) showed that these tests may be derived using so-called marginal models. The marginal modelling approach substantially increases the possibilities of Mokken scale analysis, but so far it has only been developed for short tests consisting of dichotomous items (e.g., correct/incorrect scoring). This proposal aims at extending the approach to longer tests and polytomous items (e.g., rating-scale scoring), and at developing a user-friendly software package for test and questionnaire construction based on marginal modelling.
Statistical approach: In this project, analytical derivations (derivations of test statistics and parameter estimators), simulation studies, and statistical analysis of empirical data are used to answer the various research questions.
The project is funded by NWO. The full description of the project is available upon request. Contact the initiators of the project (listed hereunder) to obtain a full description.
REQUIREMENTS
Applicants are invited for an appointment as a PhD in methodology and statistics at the department of Methodology and Statistics. As a PhD you will do a literature search, develop statistical and psychometric models, apply the methods to empirical data, and develop user-friendly software. The PhD will present papers at conferences and write papers for international journals to be included in a Ph.D. dissertation.
Requirements
Required education/skills:University Graduate
We are looking for a candidate with a thorough knowledge of statistics, statistical modelling and programming; and a demonstrable interest in research methods, psychometrics, and/or econometrics. The candidate has a master degree in a relevant subject, is ambitious, is able to work independently, and is willing to cooperate closely with fellow researchers.
Also, the candidate has to speak and write in English at a level that is sufficient for conducting and reporting on scientific research. Knowledge of Dutch is an advantage but not a prerequisite.
Job type: Research / Advising
Workfield(s):
- Research trainees, non-tenured lecturers, researchers(Scientific discipline: Behaviour and Society)
Organization
Tilburg University
Department of Methodology and Statistics
Tilburg University is a modern, specialized university. The teaching and research of the Faculty of Social and Behavioural Sciences are organized around the themes of Health, Organization, and Relations between State, Citizen, and Society. The faculty’s inspiring working environment challenges its workers to realize their ambitions; involvement and cooperation are essential to achieve this.
The Department of Methodology and Statistics is responsible for teaching methodology and statistics to students of the Faculty of Social and Behavioural Sciences. Central in its research program are the study, development, and application of latent variable models. Among these models are latent class models, item response models, and linear structural equation models. One of the major themes is the research on marginal models. The Department’s research program is part of the national graduate school Interuniversity Graduate School for Psychometrics and Sociometrics (IOPS)
Conditions of employment
Estimated maximum salary per month: eur 2000 - 2500
Maximum salary amount in Euro's a month 2558
Employment basis: Temporary for specified period
Duration of the contract: 1 3 years
Maximum hours per week: 38
Additional Information
Additional information about the vacancy can be obtained from:
dr. L.A. van der Ark
Telephone number: 31 13 4662286
E-mail address: a.vdrark@uvt.nl
Or dr. M.A. Croon
Telephone number: 31 13 4662284
E-mail address: m.a.croon@uvt.nl
Or additional information can be obtained through one of the following links:
You can apply for this job before 20-06-2008 (dd-mm-yyyy) by sending your application to:
Universiteit van Tilburg
drs.M. Marcel van Ieperen managing director
Postbus 90153
5000 LE Tilburg
E-mail: pz-fsw@uvt.nl
When applying for this job always mention the vacancynumber AT 400.08.17.
Job description
TITEL PROJECT
Test Construction Using Marginal Models
PHD PROJECT.
Core of the project: This project is mainly concerned with statistical modelling, matrix algebra, programming and data analysis.
Content description: Mokken scale analysis is an important statistical tool for the construction of psychological tests and multi-item questionnaires as they are used commonly in sociology, marketing and health-related quality of life measurement. Until recently, for important parts of the method statistical significance tests were unavailable, but Van der Ark, Croon, and Sijtsma (Psychometrika, in press) showed that these tests may be derived using so-called marginal models. The marginal modelling approach substantially increases the possibilities of Mokken scale analysis, but so far it has only been developed for short tests consisting of dichotomous items (e.g., correct/incorrect scoring). This proposal aims at extending the approach to longer tests and polytomous items (e.g., rating-scale scoring), and at developing a user-friendly software package for test and questionnaire construction based on marginal modelling.
Statistical approach: In this project, analytical derivations (derivations of test statistics and parameter estimators), simulation studies, and statistical analysis of empirical data are used to answer the various research questions.
The project is funded by NWO. The full description of the project is available upon request. Contact the initiators of the project (listed hereunder) to obtain a full description.
REQUIREMENTS
Applicants are invited for an appointment as a PhD in methodology and statistics at the department of Methodology and Statistics. As a PhD you will do a literature search, develop statistical and psychometric models, apply the methods to empirical data, and develop user-friendly software. The PhD will present papers at conferences and write papers for international journals to be included in a Ph.D. dissertation.
Requirements
Required education/skills:University Graduate
We are looking for a candidate with a thorough knowledge of statistics, statistical modelling and programming; and a demonstrable interest in research methods, psychometrics, and/or econometrics. The candidate has a master degree in a relevant subject, is ambitious, is able to work independently, and is willing to cooperate closely with fellow researchers.
Also, the candidate has to speak and write in English at a level that is sufficient for conducting and reporting on scientific research. Knowledge of Dutch is an advantage but not a prerequisite.
Job type: Research / Advising
Workfield(s):
- Research trainees, non-tenured lecturers, researchers(Scientific discipline: Behaviour and Society)
Organization
Tilburg University
Department of Methodology and Statistics
Tilburg University is a modern, specialized university. The teaching and research of the Faculty of Social and Behavioural Sciences are organized around the themes of Health, Organization, and Relations between State, Citizen, and Society. The faculty’s inspiring working environment challenges its workers to realize their ambitions; involvement and cooperation are essential to achieve this.
The Department of Methodology and Statistics is responsible for teaching methodology and statistics to students of the Faculty of Social and Behavioural Sciences. Central in its research program are the study, development, and application of latent variable models. Among these models are latent class models, item response models, and linear structural equation models. One of the major themes is the research on marginal models. The Department’s research program is part of the national graduate school Interuniversity Graduate School for Psychometrics and Sociometrics (IOPS)
Conditions of employment
Estimated maximum salary per month: eur 2000 - 2500
Maximum salary amount in Euro's a month 2558
Employment basis: Temporary for specified period
Duration of the contract: 1 3 years
Maximum hours per week: 38
Additional Information
Additional information about the vacancy can be obtained from:
dr. L.A. van der Ark
Telephone number: 31 13 4662286
E-mail address: a.vdrark@uvt.nl
Or dr. M.A. Croon
Telephone number: 31 13 4662284
E-mail address: m.a.croon@uvt.nl
Or additional information can be obtained through one of the following links:
- About the organization (http://www.tilburguniversity.nl)
- About the function (http://www.tilburguniversity.nl/vacancies/4000817.html)
You can apply for this job before 20-06-2008 (dd-mm-yyyy) by sending your application to:
Universiteit van Tilburg
drs.M. Marcel van Ieperen managing director
Postbus 90153
5000 LE Tilburg
E-mail: pz-fsw@uvt.nl
When applying for this job always mention the vacancynumber AT 400.08.17.
