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Klaas Sijtsma · Study
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Author
Klaas Sijtsma
65 works
· latest 2024
· 3 institutions
cluster: provisional
ORCID 0000-0002-4739-0574
Works
60 shown
Recognize the Value of the Sum Score, Psychometrics’ Greatest Accomplishment
Psychometrika
·
2024
·
3 authors
·
Open access
62
citations
Part II: On the Use, the Misuse, and the Very Limited Usefulness of Cronbach’s Alpha: Discussing Lower Bounds and Correlated Errors
Psychometrika
·
2021
·
2 authors
·
Open access
118
citations
Standardized Protocol Items Recommendations for Observational Studies (SPIROS) for Observational Study Protocol Reporting Guidelines: Protocol for a Delphi Study
JMIR Research Protocols
·
2020
·
8 authors
·
Open access
36
citations
Longitudinal associations between trait neuroticism and negative daily experiences in adolescence.
Journal of Personality and Social Psychology
·
2019
·
6 authors
·
Open access
88
citations
Item-Score Reliability as a Selection Tool in Test Construction
Frontiers in Psychology
·
2019
·
4 authors
·
Open access
167
citations
Methods for Estimating Item-Score Reliability
Applied Psychological Measurement
·
2018
·
4 authors
·
Open access
50
citations
Item-Score Reliability in Empirical-Data Sets and Its Relationship With Other Item Indices
Educational and Psychological Measurement
·
2017
·
4 authors
·
Open access
133
citations
Big Five personality stability, change, and codevelopment across adolescence and early adulthood.
Journal of Personality and Social Psychology
·
2017
·
8 authors
·
Open access
280
citations
A tutorial on how to do a Mokken scale analysis on your test and questionnaire data
British Journal of Mathematical and Statistical Psychology
·
2016
·
2 authors
·
review
·
Open access
259
citations
Using Conditional Association to Identify Locally Independent Item Sets
Methodology
·
2016
·
3 authors
·
Open access
67
citations
Comparison of Classical Test Theory and Item Response Theory in Individual Change Assessment
Applied Psychological Measurement
·
2016
·
3 authors
·
Open access
202
citations
Invited discussion of Cronbach (1951). Coefficient alpha and the internal structure of tests. Psychometrika, 16, 297-334 (26,889 citations in Google Scholar as of 1/1/2016)
Data Archiving and Networked Services (DANS)
·
2016
·
1 author
·
other
·
Open access
169
citations
Sample Size Requirements for Traditional and Regression-Based Norms
Assessment
·
2015
·
3 authors
·
Open access
129
citations
Playing with Data—Or How to Discourage Questionable Research Practices and Stimulate Researchers to Do Things Right
Psychometrika
·
2015
·
1 author
79
citations
Improving the Conduct and Reporting of Statistical Analysis in Psychology
Psychometrika
·
2015
·
3 authors
20
citations
Minimum Sample Size Requirements for Mokken Scale Analysis
Educational and Psychological Measurement
·
2014
·
3 authors
80
citations
On the Shortcomings of Shortened Tests: A Literature Review
International Journal of Testing
·
2013
·
3 authors
·
Open access
204
citations
Comparing Optimization Algorithms for Item Selection in Mokken Scale Analysis
Journal of Classification
·
2013
·
3 authors
84
citations
Test Length and Decision Quality in Personnel Selection: When Is Short Too Short?
International Journal of Testing
·
2012
·
3 authors
·
Open access
58
citations
Psychological measurement between physics and statistics
Theory & Psychology
·
2012
·
1 author
58
citations
Future of Psychometrics: Ask What Psychometrics Can Do for Psychology
Psychometrika
·
2011
·
1 author
·
Open access
51
citations
A Latent Class Approach to Estimating Test-Score Reliability
Applied Psychological Measurement
·
2011
·
2 authors
·
Open access
81
citations
Outliers in Questionnaire Data
Journal of Educational and Behavioral Statistics
·
2010
·
3 authors
87
citations
The Dutch Review Process for Evaluating the Quality of Psychological Tests: History, Procedure, and Results
International Journal of Testing
·
2010
·
4 authors
·
Open access
88
citations
Mokken scale analysis as time goes by: An update for scaling practitioners
Personality and Individual Differences
·
2010
·
3 authors
·
Open access
126
citations
Investigating an Invariant Item Ordering for Polytomously Scored Items
Educational and Psychological Measurement
·
2010
·
4 authors
·
Open access
168
citations
Correcting Fallacies in Validity, Reliability, and Classification
International Journal of Testing
·
2009
·
1 author
·
Open access
45
citations
COTAN Beoordelingssysteem voor de kwaliteit van tests, geheel herziene versie
UvA-DARE (University of Amsterdam)
·
2009
·
2 authors
·
book
·
Open access
14
citations
Reliability Beyond Theory and Into Practice
Psychometrika
·
2008
·
1 author
·
Open access
164
citations
On the Use, the Misuse, and the Very Limited Usefulness of Cronbach’s Alpha
Psychometrika
·
2008
·
1 author
·
Open access
2,798
citations
A Comparative Study of the Dimensionality of the Self-Concealment Scale Using Principal Components Analysis and Mokken Scale Analysis
Journal of Personality Assessment
·
2008
·
4 authors
53
citations
Detection and Validation of Unscalable Item Score Patterns Using Item Response Theory: An Illustration with Harter's Self-Perception Profile for Children
Journal of Personality Assessment
·
2008
·
4 authors
90
citations
Nonparametric IRT analysis of Quality-of-Life Scales and its application to the World Health Organization Quality-of-Life Scale (WHOQOL-Bref)
Quality of Life Research
·
2008
·
5 authors
·
Open access
100
citations
Mokken Scale Analysis for Dichotomous Items Using Marginal Models
Psychometrika
·
2007
·
3 authors
·
Open access
48
citations
Multiple Imputation of Item Scores in Test and Questionnaire Data, and Influence on Psychometric Results
Multivariate Behavioral Research
·
2007
·
3 authors
·
Open access
97
citations
On the consistency of individual classification using short scales.
Psychological Methods
·
2007
·
3 authors
·
Open access
180
citations
Korte tests : Kostbare tijdwinst en onbetrouwbare beslissingen
Data Archiving and Networked Services (DANS)
·
2007
·
2 authors
·
Open access
0
citations
Item Response Theory: Past Performance, Present Developments, and Future Expectations
Behaviormetrika
·
2006
·
2 authors
·
Open access
70
citations
The Role of Students’ Personality Characteristics, Self-Perceived Competence and Learning Conceptions in the Acquisition and Development of Social Communicative Competence: A Longitudinal Study
Higher Education
·
2006
·
5 authors
·
Open access
27
citations
New Developments in Categorical Data Analysis for the Social and Behavioral Sciences
Psychology Press eBooks
·
2005
·
3 authors
·
book
·
Open access
133
citations
Global, Local, and Graphical Person-Fit Analysis Using Person-Response Functions.
Psychological Methods
·
2005
·
3 authors
·
Open access
66
citations
A Comparative Study of Test Data Dimensionality Assessment Procedures Under Nonparametric IRT Models
Applied Psychological Measurement
·
2004
·
3 authors
90
citations
Examination of the Dimensionality of Fatigue
European Journal of Psychological Assessment
·
2003
·
5 authors
324
citations
Introduction to Nonparametric Item Response Theory
Sage eBooks
·
2002
·
2 authors
·
book
764
citations
On Measurement Properties of Continuation Ratio Models
Psychometrika
·
2001
·
3 authors
·
Open access
47
citations
Cognitive Assessment Models with Few Assumptions, and Connections with Nonparametric Item Response Theory
Applied Psychological Measurement
·
2001
·
2 authors
·
Open access
1,010
citations
Nonparametric Item Response Theory in Action: An Overview of the Special Issue
Applied Psychological Measurement
·
2001
·
2 authors
·
Open access
85
citations
Methodology Review: Evaluating Person Fit
Applied Psychological Measurement
·
2001
·
2 authors
·
Open access
419
citations
The Person Response Function as a Tool in Person-Fit Research
Psychometrika
·
2001
·
2 authors
·
Open access
59
citations
Latent and Manifest Monotonicity in Item Response Models
Applied Psychological Measurement
·
2000
·
2 authors
·
Open access
122
citations
MPS5 for Windows. A program for Mokken scale analysis for polytomous items
Data Archiving and Networked Services (DANS)
·
2000
·
2 authors
·
book
78
citations
A Taxonomy of IRT Models for Ordering Persons and Items Using Simple Sum Scores
Journal of Educational and Behavioral Statistics
·
2000
·
2 authors
48
citations
Factor Analysis of Multidimensional Polytomous Item Response Data Suffering From Ignorable Item Nonresponse
Multivariate Behavioral Research
·
1999
·
2 authors
·
Open access
65
citations
Nonparametric Polytomous IRT Models for Invariant Item Ordering, with Results for Parametric Models
Psychometrika
·
1998
·
2 authors
·
Open access
62
citations
Methodology Review: Nonparametric IRT Approaches to the Analysis of Dichotomous Item Scores
Applied Psychological Measurement
·
1998
·
1 author
·
Open access
91
citations
Stochastic Ordering Using the Latent Trait and the Sum Score in Polytomous IRT Models
Psychometrika
·
1997
·
4 authors
·
Open access
156
citations
Polytomous IRT Models and Monotone Likelihood Ratio of the Total Score
Psychometrika
·
1996
·
4 authors
75
citations
A survey of theory and methods of invariant item ordering
British Journal of Mathematical and Statistical Psychology
·
1996
·
2 authors
112
citations
Selection of Unidimensional Scales From a Multidimensional Item Bank in the Polytomous Mokken I RT Model
Applied Psychological Measurement
·
1995
·
3 authors
·
Open access
176
citations
Influence of Test and Person Characteristics on Nonparametric Appropriateness Measurement
Applied Psychological Measurement
·
1994
·
3 authors
·
Open access
64
citations