Sacha EpskampCurriculum Vitae

PersonalSurname Epskamp

First name SachaDate of birth April 15, 1985Nationality Dutch/EU

ExperienceAug 2016 - Current Assistant Professor, University of Amsterdam, Department of Psychological Meth-

ods, Amsterdam.

March 2016 - Aug 2016 Analysis team for JASP software, University of Amsterdam, Department ofPsychological Methods, Amsterdam.

Feb 2016 Visiting researcher, University of Edinburgh, School of Philosophy, Psychologyand Language Sciences, Edinburgh.

Nov 2015 - Jan 2016 Visiting researcher, University of Amsterdam, Department of ComputationalScience, Amsterdam.

Aug 2015 - Nov 2015 Visiting researcher, Nanyang Technological University, Complexity Institute,Singapore.

Oct 2013 - Aug 2015 Psychometrician/Data analyst, Oefenweb.nl, Amsterdam.

Feb 2015 - May 2015 Statistical Consultant, Center for Open Science.

Jan 2012 - Aug 2012 Intern, CITO, Psychometrisch Onderzoeks- en Kenniscentrum, Arnhem.

Feb 2009 - Aug 2012 Student assistant, University of Amsterdam, Department of Psychological Methods,Amsterdam.

EducationAug 2012 - Aug 2016 PhD, University of Amsterdam, Department of Psychological Methods, Amsterdam.

{ Project title: Network Psychometrics{ Supervisor: prof. dr. Denny Borsboom{ Funded by: NWO “research talent” Grant Number 406-11-066{ Date of defense: April 5 2017

POBox 15906 – 1001 NK Amsterdam, The NetherlandsB sacha.epskamp@gmail.com • Í sachaepskamp.com

Sep 2010 - Aug 2012 Master of Science, University of Amsterdam, Research Master Psychology,Amsterdam.{ Graduated: August 2012 (cum laude){ Specialization: Psychological Methods{ Minor: Computational Science (University of Amsterdam){ Master thesis supervisor: Gunter Maris (CITO, Arnhem){ Internship supervisor: Han van der Maas (Oefenweb, Amsterdam)

Sep 2007 - Aug 2010 Bachelor of Science, University of Amsterdam, Faculty of Psychology, Amsterdam.{ Graduated: July 2010 (cum laude){ Specialization: Psychological Methods{ Bachelor thesis supervisor: Eric-Jan Wagenmakers

PublicationsThis CV contains links to my publications, which can also be found on my website at sachaepskamp.com/publications.

{ Main author publications:- Epskamp, S., van Borkulo, C.D., van der Veen, D.C., Servaas, M.N., Isvoranu, A.M., Riese, H., and Cramer,A.O.J. (accepted pending revision). Personalized Network Modeling in Psychopathology: The Importance ofContemporaneous and Temporal Connections. Clinical Psychological Science. Link.

- Epskamp, S., Waldorp, L.J., Mõttus, R., and Borsboom, D. (accepted pending revision). DiscoveringPsychological Dynamics: The Gaussian Graphical Model in Cross-sectional and Time-series Data. MultivariateBehavioral Research. Link.

- Epskamp, S., and Fried, E. I. (in press). A Tutorial on Regularized Partial Correlation Networks. PsychologicalMethods. Link.

- Epskamp, S., Kruis, J., and Marsman, M. (2017). Estimating psychopathological networks: be careful whatyou wish for. PlosOne, 12(6): e0179891. Link.

- Epskamp, S., Borsboom, D., and Fried, E. I. (2017). Estimating Psychological Networks and their Accuracy:A Tutorial Paper. Behavior Research Methods. Link.

- Epskamp, S., Rhemtulla, M., and Borsboom, D. (2017) Generalized Network Psychometrics: CombiningNetwork and Latent Variable models. Psychometrika. Link.

- Epskamp, S., Maris, G., Waldorp, L. J., and Borsboom, D. (in press). Network Psychometrics. To appear in:Irwing, P., Hughes, D., and Booth, T. (Eds.), Handbook of Psychometrics. New York: Wiley. Link.

- Epskamp, S. (2015). semPlot: Unified visualizations of Structural Equation Models. Structural EquationModeling, 22, 747-757. Link.

- Costantini, G., Epskamp, S. (the first two authors contributed equally to this work), Borsboom, D., Perugini,M., Möttus, R., Waldorp, L. J., and Cramer, A. O. (2014). State of the aRt personality research: A tutorial onnetwork analysis of personality data in R. Journal of Research in Personality, 54, 13-29. Link.

- Epskamp, S., Cramer, A.O.J., Waldorp, L.J., Schmittmann, V.D. and Borsboom, D. (2012) qgraph: NetworkVisualizations of Relationships in Psychometric Data. Journal of Statistical Software, 48(4), 1-18. Link.

{ In preparation / under review- Epskamp, S., Regularized Gaussian Psychological Networks: Brief Report on the Performance of ExtendedBIC Model Selection. Link

- Abacioglu, C. S., Isvoranu, A. M., Verkuyten, M., Thijs, J., and Epskamp, S. . Exploring teachersâĂŹ influenceon student motivation in multicultural classrooms: A comparative network analysis Link.

- Greene, T., Gelkopf, M., Epskamp, S. and Fried, E. Dynamic networks of PTSD symptoms during conflict.

{ Collaborations:- Van Bork, R., Epskamp, S., Rhemtulla, M., Borsboom, D. and Van der Maas, H. L. J. (in press). What is P?Some Risks of General Factor Modeling. Theory and Psychology.

- Borsboom, D., Fried, E. I., Epskamp, S., Waldorp, L. J., van Borkulo, C. D., van der Maas, H. L. J., andCramer, A. (in press). False alarm? A comprehensive reanalysis of “Evidence that psychopathology symptomnetworks have limited replicability” by Forbes, Wright, Markon, and Krueger. Journal of Abnormal Psychology.Link.

- Wagenmakers, E. J., Marsman, M., Jamil, T., Ly, A., Verhagen, J., Love, J., Selker, R., Gronau, Q. F., Smira,M., Epskamp, S., Matzke, D., Rouder, J. N. and Morey, R. D. (2017). Bayesian inference for psychology. Part

POBox 15906 – 1001 NK Amsterdam, The NetherlandsB sacha.epskamp@gmail.com • Í sachaepskamp.com

I: Theoretical advantages and practical ramifications. Psychonomic Bulletin & Review. Link.- Wagenmakers, E. J., Love, J., Marsman, M., Jamil, T., Ly, A., Verhagen, J., Selker, R., Gronau, Q. F.,Dropmann, D., Boutin, B., Meerhoff, F., Knight, P., Raj, A., Van Kesteren, E-J., Van Doorn, J., Smira, M.,Epskamp, S., Etz, A., Matzke, D., De Jong, T., Van den Bergh, D., Sarafoglou, A., Steingrover, H., Derks,K., Rouder, J. N. and Morey, R. D. (2017). Bayesian inference for psychology. Part II: example applicationswith JASP. Psychonomic Bulletin & Review. Link.

- Costantini, G., Richetin, J., Preti, E., Casini, E., Epskamp, S., and Perugini, M. (2017). Stability and variabilityof personality networks. A tutorial on recent developments in network psychometrics. Personality and IndividualDifferences. Link.

- Golino, H. F. and Epskamp, S. (2017). Exploratory graph analysis: a new approach for estimating the numberof dimensions in psychological research. PlosOne 12(6): e0174035.

- Mõttus, R., Epskamp, S., Francis, A. (2017). Within- and between individual variability of personalitycharacteristics and physical exercise. Journal of Research in Personality, 69. 139-148. Link.

- Tio, P., Epskamp, S., Noordhof, A., and Borsboom, D. (2016). Mapping the manuals of madness: Comparingthe ICD-10 and DSM-IV-TR using a network approach. International Journal of Methods in Psychiatric Research.Link.

- Fried, E. I., van Borkulo, C. D., Epskamp, S., Schoevers, R. A., Tuerlinckx, F., and Borsboom, D. (2016).Measuring Depression Over Time. . . or not? Lack of Unidimensionality and Longitudinal Measurement Invariancein Four Common Rating Scales of Depression. Psychological Assessment. Advance online publication. Link.

- Open Science Collaboration. (2015). Estimating the reproducibility of psychological science. Science, 349(6251). Link.· I setup and coordinated the “analysis audit” in which a team of students worked on replicating all analysesdone in R.

- Wichers, M., Groot, P.C., Psychosystems, ESM Group, EWS Group (2016). Psychotherapy and Psychoso-matics, 85 : 114-116. Link.

- Nuijten, M.B., Hartgerink, C. H. J., van Assen, M. A. L. M., Epskamp, S., and Wicherts, J. M. (2015). Theprevalence of statistical reporting errors in psychology (1985-2013). Behavior Research Methods. Link.

- Fried, E. I., Epskamp, S., Nesse, R.M., Tuerlinckx, F., and Borsboom, D. (2016). What are ‘good’ depressionsymptoms? Comparing the centrality of DSM and non-DSM symptoms of depression in a network analysis.Journal of Affective Disorders, 189 : 314-320. Link.

- Kossakowski, J. J., Epskamp, S., Kieffer, J. M., van Borkulo, C. D., Rhemtulla, M., and Borsboom, D. (2015).The application of a network approach to health-related quality of life (HRQoL): Introducing a new method forassessing HRQOL in healthy adults and cancer patient. Quality of Life Research, 0962-9343, 1-12. Link.

- Langley, D. J., Wijn, R., Epskamp, S., and Van Bork, R. (2015). Should I Get That Jab? ECIS 2015Research-in-Progress Papers, Paper 64. Link.

- Wigman, J. T. W., Van Os, J., Borsboom, D., Wardenaar, K. J., Epskamp, S., Klippel, A, MERGE, Viechtbauer,W., Myin-Germeys, I., and Wichers, M. (2015). Exploring the underlying structure of mental disorders: cross-diagnostic differences and similarities from a network perspective using both a top-down and a bottom-upapproach. Psychological Medicine, 45, 2375-2387. Link.

- Fried, E. I., Bockting, C., Arjadi, R., Borsboom, D., Amshoff, M., Cramer, A. O. J., Epskamp, S., Tuerlinckx,F., Carr, D., and Stroebe, M. (2015). From loss to loneliness: The relationship between depressive symptomsand bereavement. Journal of Abnormal Psychology, 124, 256-65. Link.

- van Borkulo, C. D., Borsboom, D., Epskamp, S., Blanken, T. F., Boschloo, L., Schoevers, R. A., and Waldorp,L. J. (2014). A new method for constructing networks from binary data. Scientific Reports, 4, 5918. Link.

- Borsboom, D., Cramer, A.O.J., Schmittmann, V.D., Epskamp, S. and Waldorp L.J. (2011) The Small Worldof Psychopathology. PLoS ONE 6, e27407. Link.

- Borsboom, D., Epskamp, S., Kievit, R.A., Cramer, A.O.J., and Schmittmann,V.D. (2011). Transdiagnosticnetworks. Perspectives on Psychological Science, 6, 610-614. Link.

- Schmittmann, V.D., Cramer, A.O.J., Waldorp, L.J., Epskamp, S., Kievit, R.A. and Borsboom, D. (2011).Deconstructing the construct: Anetwork perspective on psychological phenomena. New Ideas in Psychology,31, 43-53. Link.

{ Citation indices (google scholar: 16-10-2017)- Citations: 2833- h-index: 19- i-10 index: 24

POBox 15906 – 1001 NK Amsterdam, The NetherlandsB sacha.epskamp@gmail.com • Í sachaepskamp.com

TeachingPlease see sachaepskamp.com/teaching for my teaching materials.

Lecturer andcoordinator { Structural Equation Modeling 1: Confirmatory Factor Analysis

- April 2017- Annual one-month research master course on confirmatory factor analysis- Evaluations: 7.5

{ Structural Equation Modeling 2: Structural Equation Modeling- May 2017- Annual one-month research master course on structural Equation Modeling- Evaluations: 8.3

{ Network Analysis- February - March 2013; September - Oktober 2014; November - December 2016.- Annual two-month research master course on network analysis for psychologicalresearch

- Evaulations:· Course: 7.3 (2013); 8.53 (2014); 8.6 (2016)· Lecturer: 8.76 (2014); 8.9 (2016)

{ LATEX- September - Oktober 2011; April 2013; January 2014; January 2015- Annual one-day workshop on writing scientific reports for psychological researchersusing LATEX

{ Introduction to R- November 2014- Two-week introductory course to R, part of research master course on multivariateanalysis

Lecturer{ Multivariate Analysis 1

- February 2017{ Multivariate Analysis 2

- March 2017

Teacher assistant{ Structural Equation Modeling, research master course

- February - March 2014{ Various courses in the Psychological Methods bachelor program

Supervisor{ Julian Burger

- Simon Stuber· Research Master internship

- Research Master internship{ Marie Deserno

- Research Master thesis{ Jonathan Klaiber

- Research Master thesis{ Olmo van den Akker

- Bachelor thesis

POBox 15906 – 1001 NK Amsterdam, The NetherlandsB sacha.epskamp@gmail.com • Í sachaepskamp.com

PresentationsPlease see sachaepskamp.com/presentations for my teaching materials.

Workshop (lecturer andorganizer) { Workshop Psychological Dynamics

- October 2017- Invited 2-day workshop- Unviversity of Amsterdam, Amsterdam, The Netherlands

{ Psychological Networks Amsterdam Summer School 2017- July 2017- Hosted 5-day course- Unviversity of Amsterdam, Amsterdam, The Netherlands

{ Psychological network analysis: estimation, inference, and stability.- October 2016- Invited 1-day workshop- Utrecht University, Utrecht, The Netherlands

{ Network Analysis- Oktober 2013- Invited 5-day course- FAINOR university, Vitória da Conquista, Brazil

Workshop (lecturer){ Psychological Networks Amsterdam Summer School 2016

- June 2016- Hosted 5-day course- Unviversity of Amsterdam, Amsterdam, The Netherlands

{ Psychological Networks Amsterdam Winter School 2017- February 2017- Hosted 5-day course- Unviversity of Amsterdam, Amsterdam, The Netherlands

{ Scientific Data Visualization, using ggplot2- 2014; 2015- Guest lecture in Concept and Data Visualization Workshop at the University ofAmsterdam

Keynote{ Personalized Network Analysis. e-coaching for Health and Wellbeing conference, Ams-

terdam, The Netherlands, 2017.

POBox 15906 – 1001 NK Amsterdam, The NetherlandsB sacha.epskamp@gmail.com • Í sachaepskamp.com

Invited{ Discovering Psychological Dynamics. Xomnia Xpert Session, Amsterdam, 2017.{ Discovering Psychological Dynamics. Tilburg Social Psychology Colloquium, Tilburg,

2017.{ Intra-individual Dynamics in Psychology. Complexity Community Sharing Session

January 2016, Nanyang Technological University, Singapore, 2016.{ The Dynamics of Psychology. National University of Singapore, Singapore, 2015.{ Complexity in Psychology. Complexity Community Sharing Session August 2015,

Nanyang Technological University, Singapore, 2015.{ Complexity in Psychology. Department for Computational Science, University of Ams-

terdam, The Netherlands, 2015.{ New developments in Network Psychometrics. University of Edinburgh, UK, 2015.{ Network Analysis for Psychologists, using qgraph in R. APS, San Francisco, California,

2014.- Invited workshop

{ Network Analysis: Applications of networks in Psychology and beyond. TNO, TheNetherlands, 2014.

{ Network Analysis: Uma abordagem integradora para pesquisa e tratamento em psicopa-tologia. FAINOR university, Vitória da Conquista, Brazil, 2014.

Contributed{ Psychological Complexity: New Directions in Dynamical Systems Modeling. Conference

Complex Systems 2017, Cancun, Mexico, 2017.{ Generalized Network Psychometrics Combining Network And Latent Variable Models.

IMPS 2017, Zurich, Switzerland, 2017.{ Generalized Network Psychometrics: Combining Network and Latent Variable Models.

Meeting of the Working Group SEM 2017, Gent, Belgium, 2017.{ Discovering Psychological Dynamics in Time-Series Data. Conference on Complex

Systems, Amsterdam, 2016.{ Generalized Network Analysis: Combining Network and Latent Variable Models. IOPS

2015 winter conference, Leiden, The Netherlands, 2016.{ Applied network analysis in Clinical Practice. ICPS, Amsterdam, The Netherlands, 2015.{ Residual Interaction Modeling. IMPS, Beijing Normal University, China, 2015.

- For this talk I was awarded a “Pearson Travel Award”{ semPlot: Unified visualizations of Structural Equation Models. Modern Modeling

Methods, Storrs, Connecticut, US, 2014.{ semPlot: Unified visualizations of Structural Equation Models. Psychoco, Tuebingen,

Germany, 2014.{ Workshop Netwerken in de psychopathologie. Lustrumcongres, Utrecht, The Netherlands,

2013{ Network Visualizations of Statistical Relationships and Structural Equation Models.

UseR, Albacete, Spain, 2013.{ Network Visualizations of Relationships in Psychometric Data and Structural Equation

Models, Using the qgraph package for R. IMPS, Arnhem, The Netherlands, 2013.{ Estimation of (Logistic) Vector-autoregression Models, Using generalized linear modelling.

IMPS, Arnhem, The Netherlands, 2013.{ Applications of visualizing test data through networks. ITC, Amsterdam, The Nether-

lands, 2012.{ The qgraph package for network visualizations of psychometric data. Psychoco, Tuebin-

gen, Germany, 2011.{ The qgraph package for network visualizations of psychometric data. Amsterdam R

usergroup, The Netherlands, 2011.

POBox 15906 – 1001 NK Amsterdam, The NetherlandsB sacha.epskamp@gmail.com • Í sachaepskamp.com

Awards and Grants

{ NWO Research talent grant (2012)- e167,576 to fund 4-year PhD project

{ IMPS travel award (2015)- $1,000 to attend IMPS 2015 in Bejing, China

{ Leamer-Rosenthal-Prize (2016)- $10,000 shared with Michele Nuijten

{ IOPS best paper award (2017)- e600 prize

SoftwareStable R packages

{ qgraph- Network drawing, construction and estimation and network-based data visualization(Link to CRAN repository)

{ semPlot- Path diagrams and visual analysis of various SEM packages’ output (Link to CRANrepository)

{ IsingSampler- Sampling methods and distribution functions for the Ising model (Link to CRANrepository)

{ lisrelToR- Import output from LISREL into R (Link to CRAN repository)

{ graphicalVAR- Estimate temporal and contemporaneous effects on N = 1 longitudinal data (Link toCRAN repository)

{ mlVAR- Multi-level vector autoregression (Link to CRAN repository)

{ bootnet- General robustness tests and plots for network models (Link to CRAN repository)

{ elasticIsing- Ising model estimation using elastic net regularization (Link to CRAN repository)

{ lvnet- Latent variable network modeling (Link to CRAN repository)

Collaborations{ IsingFit

- Fitting Ising models using the eLasso method (Link to CRAN repository){ statcheck

- Fitting Ising models using the eLasso method (Link to CRAN repository){ JASP

- A low fat alternative to SPSS, a delicious alternative to R. (Link to website)

Other ActivitiesEditorial Duties

{ Member of editorial board of the European Journal of Personality

POBox 15906 – 1001 NK Amsterdam, The NetherlandsB sacha.epskamp@gmail.com • Í sachaepskamp.com

Online references

{ sachaepskamp.com- My personal website including all my presentations and course materials

{ psychosystems.org- Website of the Psychosystems research group in which I conduct my PhD research

{ scholar.google.com/citations?user=fQpiw-sAAAAJ- My Google scholar profile

{ github.com/SachaEpskamp- My GitHub profile including all latest versions of my R package

{ linkedin.com/pub/sacha-epskamp- My LinkedIn profile

POBox 15906 – 1001 NK Amsterdam, The NetherlandsB sacha.epskamp@gmail.com • Í sachaepskamp.com