Dr. Maarten Cruyff

Sjoerd Groenmangebouw
Padualaan 14
Kamer C.113
3584 CH Utrecht

Dr. Maarten Cruyff

Assistant Professor
Methodology and Statistics
+31 30 253 4594
m.cruyff@uu.nl

Publications

2023

Scholarly publications

Sayed, K. H. A., Cruyff, M. J. L. F., & van der Heijden, P. G. M. (2023). The analysis of randomized response “ever” and “last year” questions: A non-saturated Multinomial model. Behavior Research Methods. https://doi.org/10.3758/s13428-023-02096-3

2022

Scholarly publications

Sayed, K., Cruyff, M., Van der Heijden, P. G. M., & Petróczi, A. (2022). Refinement of the extended crosswise model with a number sequence randomizer: Evidence from three different studies in the UK. PLoS One, 17(12), 1-19. [1]. https://doi.org/10.1371/journal.pone.0279741
Petróczi, A., Cruyff, M., de Hon, O., Sagoe, D., & Saugy, M. (2022). Hidden figures: Revisiting doping prevalence estimates previously reported for two major international sport events in the context of further empirical evidence and the extant literature. Frontiers in Sports and Active Living, 4, [1017329]. https://doi.org/10.3389/fspor.2022.1017329
van der Heijden, P. G. M., Cruyff, M., Smith, P. A., Bycroft, C., Graham, P., & Matheson-Dunning, N. (2022). Multiple system estimation using covariates having missing values and measurement error: Estimating the size of the Māori population in New Zealand. Journal of the Royal Statistical Society, Series A: Statistics in Society, 185(1), 156-177. https://doi.org/10.1111/rssa.12731

Professional publications

van der Heijden, P. G. M., Cruyff, M., & van Dijk, J. (2022). Monitoreo de la prevalencia de la trata de personas a través de la estimación de sistemas múltiples. Un manual de las Naciones Unidas para responsables de políticas públicas, profesionales e investigadores comprometidos con el objetivo de desarrollo sostenible 16.2. . United Nations on Drugs and Crime.
van der Heijden, P. G. M., Cruyff, M., & van Dijk, J. (2022). Surveillance de la prévalence de la traite des êtres humains par une estimation de systèmes multiples. Un manuel des Nations Unies pour les décideurs, les praticiens et les chercheurs qui participent à l’óbjectif 16.2 du développement durable. United Nations on Drugs and Crime.
https://dspace.library.uu.nl/bitstream/handle/1874/422258/MSE_TIP_UNODC_FR.pdf?sequence=1
van der Heijden, P. G. M., Cruyff, M., & van Dijk, J. (2022). Monitoring human trafficking prevalence through multiple systems estimation. A United Nations manual for policymakers, practitioners and researchers engaging with sustainable development goals 16.2. United Nations on Drugs and Crime.
https://dspace.library.uu.nl/bitstream/handle/1874/422257/MSE_TIP_UNODC_ENG.pdf?sequence=1

2021

Scholarly publications

Cruyff, M., Overstall, A., Papathomas, M., & McCrea, R. (2021). Multiple System Estimation of Victims of Human Trafficking: Model Assessment and Selection. Crime and Delinquency, 67(13-14), 2237-2253. https://doi.org/10.1177/0011128720981908
Gleaves, J., Petroczi, A., Folkerts, D., de Hon, O., Macedo, E., Saugy, M., & Cruyff, M. (2021). Doping Prevalence in Competitive Sport: Evidence Synthesis with "Best Practice" Recommendations and Reporting Guidelines from the WADA Working Group on Doping Prevalence. Sports Medicine, 51(9), 1909-1934. https://doi.org/10.1007/s40279-021-01477-y
Gleaves, J., Petróczi, A., Folkerts, D., de Hon, O., Macedo, E., Saugy, M., & Cruyff, M. (2021). Doping Prevalence in Competitive Sport: Evidence Synthesis with “Best Practice” Recommendations and Reporting Guidelines from the WADA Working Group on Doping Prevalence. Sports Medicine, 51(9), 1909-1934. https://doi.org/10.1007/s40279-021-01477-y
Van der Heijden, P. G. M., Smith, P. A., & Cruyff, M. (2021). Multiple record system estimation with overlapping lists, where some lists cover only part of the population1. In Proceedings 63rd ISI World Statistics Congress: 11 - 16 July 2021, Virtual (pp. 1-5). ISI World Statistics Congress. https://www.isi-web.org/files/docs/papers-and-abstracts/50-day2-ips192-multiple-record-system-estimat.pdf
Hilkens, L., Cruyff, M., Woertman, L., Benjamins, J., & Evers, C. (2021). Social Media, Body Image and Resistance Training: Creating the Perfect ‘Me’ with Dietary Supplements, Anabolic Steroids and SARM’s. Sports Medicine - Open, 7(1), 1-13. [81]. https://doi.org/10.1186/s40798-021-00371-1
van Dijk, J., Cruyff, M., & van der Heijden, P. G. M. (2021). Multiple systems estimation slachtoffers mensenhandel Nederland 2016-2019. (Rapport 3132 ed.) Wetenschappelijk Onderzoeks- en DocumentatieCentrum/WODC. https://repository.wodc.nl/handle/20.500.12832/3123
Smith, P. A., van der Heijden, P. G. M., & Cruyff, M. (2021). Measurement errors in multiple systems estimation. In G. C. Porzio, C. Rampichini, & C. Bocci (Eds.), CLADAG 2021 Book of abstracts and short papers: 13th Scientific Meeting of the Classification and Data Analysis Group - Firenze, September 9-11, 2021 (pp. 211-214). (Proceedings e report). Firenze University Press. https://doi.org/10.36253/978-88-5518-340-6
Sagoe, D., Cruyff, M., Spendiff, O., Chegeni, R., De Hon, O., van der Heijden, P. G. M., Saugy, M., & Petróczi , A. (2021). Functionality of the Crosswise Model for Assessing Sensitive or Transgressive Behavior: A Systematic Review and Meta-Analysis. Frontiers in Psychology, 12, 1-19. [655592]. https://doi.org/10.3389/fpsyg.2021.655592

2020

Scholarly publications

van der Heijden, P. G. M., & Cruyff, M. J. L. F. (2020). Contribution to the discussion of B.W. Silverman, Multiple-systems analysis for the quantification of modern slavery: classical and Bayesian approaches. Journal of the Royal Statistical Society: Series A, 183(3), 727-728. https://doi.org/10.1111/rssa.12505
Vincent, K., Bales, K., Durgana, D. P., Cruyff, M., van der Heijden, P. G. M., & Dijk, J. V. (2020). Misunderstandings of Multiple Systems Estimation: A Response to “On the Unreliability of Multiple Systems Estimation for Estimating the Number of Potential Victims of Modern Slavery in the UK” by Whitehead, Jackson, Balch, and Francis (2019). Journal of Human Trafficking. https://doi.org/10.1080/23322705.2020.1833571
Vincent, K., Bales, K., Durgana, D. P., Cruyff, M., van der Heijden, P. G. M., & van Dijk, J. (2020). Vincent et al. Concluding Response to Whitehead et al. Journal of Human Trafficking. https://doi.org/10.1080/23322705.2020.1833572
van der Heijden, P. G. M., & Cruyff, M. J. L. F. (2020). Wider applications for dual and multiple system estimation. The Survey Statistician, 81, 16-20. http://isi-iass.org/home/services/the-survey-statistician/
https://dspace.library.uu.nl/bitstream/handle/1874/394540/Pages_from_Survey_Statistician_2020_January_N81.pdf?sequence=1

Professional publications

2019

Scholarly publications

ten Boom, A., Wittebrood, K., Alink, L. R. A., Cruyff, M. J. L. F., Downes, R. E., van Eijkern, E. Y. M., van Gils, G. H. C., van der Heijden, P. G. M., Prevoo, M. J. L., Ramakers, C. C., Schellingerhout, R., Snippe, J. M., & Veenstra, D. R. (2019). De prevalentie van huiselijk geweld en kindermishandeling in Nederland. (Cahiers 2019-01). WODC. https://www.wodc.nl/onderzoeksdatabase/2668i-synthese-prevalentieonderzoek-hg-en-kimi.aspx
van der Heijden, P. G. M., Cruyff, M. J. L. F., van Gils, G. H. C., & Snippe, J. (2019). Prevalentieschatting huiselijk geweld en kindermishandeling met vangst-her-vangst methode. Universiteit Utrecht. https://www.wodc.nl/onderzoeksdatabase/2668h-vangst-hervangst-schatting-huiselijk-geweld-en-kindermishandeling.aspx
Cruyff, M. J. L. F., van der Heijden, P. G. M., Smith, P. A., Bycroft, C., & Graham, P. (2019). Multiple system estimation for the size of the Māori population in New Zealand. In Proceedings of the 62nd ISI World Statistics Congress 2019: Special Topic Session (Vol. 3, pp. 315-323)
https://dspace.library.uu.nl/bitstream/handle/1874/390897/Cruyff_et_al._2019_Pages_from_5.Special_Topic_Session_STS_Volume_3.pdf?sequence=3
Böckenholt, U., Cruyff, M. J. L. F., van der Heijden, P. G. M., & van den Hout, A. (2019). On the Measurement of Noncompliance Using (Randomized) Item Response Models. In G. R. Hancock, J. R. Harring, & G. B. Macready (Eds.), Advances in Latent Class Analysis: A Festschrift in Honor of C. Mitchell Dayton (pp. 1-16). Information Age Publishing Inc.
van der Heijden, P. G. M., Smith, P. A., Whittaker, J., Cruyff, M. J. L. F., & Bakker, B. (2019). Dual and multiple system estimation with fully and partially observed covariates. In L. C. Zhang, & R. L. Chambers (Eds.), Analysis of integrated data. (pp. 137-168). CRC Press.

2018

Scholarly publications

Cruyff, M. J. L. F., Cerri, J., Scuffi, L., Nocita, A., Zaccaroni, M., & Lenuzza, A. (Accepted/In press). Characterizing noncompliance in conservation: a multidimensional randomized response technique for multinomial responses. bioRxiv. https://doi.org/10.1101/453159
Chang, C. H., Cruyff, M. J. L. F., & Giam, X. (2018). Examining conservation compliance with randomized response technique analyses. Conservation Biology, 32(6), 1448-1456. https://doi.org/10.1111/cobi.13133
van der Heijden, P. G. M., Smith, P. A., Cruyff, M. J. L. F., & Bakker, B. F. M. (2018). An overview of population size estimation where linking registers results in incomplete covariates, with an application to mode of transport of serious road casualties. Journal of Official Statistics, 34(1), 239-263. https://doi.org/10.1515/jos-2018-0011

Other output

Van Dijk, J., Cruyff, M. J. L. F., van der Heijden, P. G. M., & Kragten-Heerdink, S. L. J. (2018). Monitoring Target 16.2 of the United Nations Sustainable Development Goals: A multiple systems estimation of the numbers of presumed human trafficking victims in the Netherlands in 2010-2015 by year, age, gender, form of exploitation and nationality. UNODC.
Van Dijk, J., Cruyff, M. J. L. F., & van der Heijden, P. G. M. (2018). Monitoring Target 16.2 of the United Nations Sustainable Development Goals: multiple systems estimation of the numbers of presumed victims in persons: Serbia. UNODC.
Van Dijk, J., Cruyff, M. J. L. F., & van der Heijden, P. G. M. (2018). Monitoring Target 16.2 of the United Nations Sustainable Development Goals: multiple systems estimation of the numbers of presumed victims of trafficking in persons: Romania. UNODC.
Van Dijk, J., Cruyff, M. J. L. F., & van der Heijden, P. G. M. (2018). Monitoring Target 16.2 of the United Nations Sustainable Development Goals: multiple systems estimation of the numbers of presumed victims of trafficking in persons: Ireland. UNODC.

2017

Scholarly publications

Cruyff, M. J. L. F., van Dijk, J., & van der Heijden, P. G. M. (2017). The Challenge of Counting Victims of Human Trafficking. Chance, 30(3), 41-49. https://doi.org/10.1080/09332480.2017.1383113
Husken, T. F., Cruyff, M. J. L. F., & van der Heijden, P. G. M. (2017). Incorporating cyclical effects and time-varying covariates in models for single-source capture-recapture data. In M. Grzegorczyk, & G. Ceoldo (Eds.), Proceedings of the 32 International Workshop on Statistical Modelling: Groningen, Netherlands, 3-7 July 2017 (Vol. 1, pp. 311-316).
https://dspace.library.uu.nl/bitstream/handle/1874/354840/Incorporating.pdf?sequence=1
van der Heijden, P. G. M., Cruyff, M. J. L. F., Whittaker, J., Bakker, B. F. M., & Smith, P. A. (2017). Dual and multiple system estimation: fully observed and incomplete covariates. In D. Böhning, P. G. M. van der Heijden, & J. Bunge (Eds.), Capture-recapture methods for the social and medical sciences (pp. 213-227). (Chapman & Hall/CRC Interdisciplinary Statistics). CRC Press Boca Raton.
Cruyff, M. J. L. F., Husken, T. F., & van der Heijden, P. G. M. (2017). Extending the truncated Poisson regression model to a time-at-risk mode. In D. Böhning, P. G. M. van der Heijden, & J. Bunge (Eds.), Capture-recapture methods for the social and medical sciences (pp. 155-162). CRC Press Boca Raton.
Coumans, A. M., Cruyff, M., van der Heijden, P. G. M., Wolf, J., & Schmeets, H. (2017). Estimating Homelessness in the Netherlands Using a Capture-Recapture Approach. Social Indicators Research, 30(1), 189-212. https://doi.org/10.1007/s11205-015-1171-7

2016

Scholarly publications

Cruyff, M., Böckenholt, U., Van der Heijden, P. G. M., & Frank, L. (2016). A review of regression procedures for randomized response data, including univariate and multivariate logistic regression, the proportional odds model and item response models. In Handbook of Statistics: Data Gathering, Analysis and Protection of Privacy Through Randomized Response Techniques: Qualitative and Quantitative Human Traits (pp. 287-315). Elsevier.
Cruyff, M., Böckenholt, U., van der Heijden, P. G. M., & Frank, L. E. (2016). A review of regression procedures for randomized response data, including univariate and multivariate logistic regression, the proportional odds model and item response model, and self-protective responses. In A. Chaudhuri, C. T. Christofides, & C. R. Rao (Eds.), Handbook of Statistics, Volume 34. Data Gathering, Analysis and Protection of Privacy through Randomized Response Techniques: Qualitative and Quantitative Human Traits (Vol. 34, pp. 287-315). Elsevier. https://doi.org/10.1016/bs.host.2016.01.016
Cruyff, M. J. L. F., Bockenholt, U., & van der Heijden, P. G. M. (2016). The multidimensional randomized response design: Estimating different aspects of the same sensitive behavior. Behavior Research Methods, 48(1), 390-399. https://doi.org/10.3758/s13428-015-0583-2

2015

Scholarly publications

van der Heijden, P. G. M., de Vries, I., Böhning, D., & Cruyff, M. (2015). Estimating the size of hard-to-reach populations using capture-recapture methodology, with a discussion of the International Labour Organization’s global estimate of forced labour: Special issue: Researching hidden populations: approaches to and methodologies for generating data on trafficking in persons. Forum on Crime and Society, 8, 109-136.
https://dspace.library.uu.nl/bitstream/handle/1874/315663/Estimating_the_size_of_hard_to_reach_populations_using_capture_recapture_methodology_Forum_on_Crime.pdf?sequence=1

Professional publications

van der Heijden, P. G. M., Cruyff, M. J. L. F., & van Gils, G. (2015). Schattingen illegaal in Nederland verblijvende vreemdelingen 2012-2013: (in opdracht van Ministerie van Veiligheid en Justitie). Universiteit Utrecht, Faculteit Sociale Wetenschappen, Afdeling Methoden en Statistiek.
https://dspace.library.uu.nl/bitstream/handle/1874/321270/Schattingen_illegaal_in_Nederland_verblijvende_vreemdelingen_2012_2013.pdf?sequence=1
van der Heijden, P. G. M., Cruyff, M. J. L. F., & van Gils, G. (2015). Veiligheid van eigendommen in de langdurige zorg. Universiteit Utrecht, Faculteit Sociale Wetenschappen, Afdeling Methoden en Statistiek.
https://dspace.library.uu.nl/bitstream/handle/1874/314904/Rapport_onderzoek_veiligheid_van_eigendommen_in_de_langdurige_zorg_def.pdf?sequence=1

Other output

Cruyff, M. J. L. F. (2015). The randomized response bracketing design. Abstract from ESRA , Reykjavik, Iceland. http://www.europeansurveyresearch.org/conference/programme2015?sess=58&day=1

2014

Scholarly publications

van der Heijden, P. G. M., Cruyff, M., & Böhning, D. (2014). Capture-recapture to estimate criminal populations. In G. J. N. Bruinsma, & D. L. Weisburd (Eds.), Encyclopedia of Criminology and Criminal Justice (pp. 267-276). Springer. https://doi.org/10.1007/978-1-4614-5690-2_662
van der Heijden, P. G. M., Cruyff, M., & Bockenholt, U. (2014). Randomized response methods. In G. J. N. Bruinsma, & D. L. Weisburd (Eds.), Encyclopedia of Criminology and Criminal Justice (pp. 4291-4297). Springer. https://doi.org/10.1007/978-1-4614-5690-2_661
Cruyff, M. J. L. F., & Van der Heijden, P. G. M. (2014). Sensitivity analysis and calibration of population size estimates obtained with the zero-truncated Poisson regression model. Statistical Modelling, 14(5), 361-373. https://doi.org/10.1177/1471082X13511168

Professional publications

Bakker, B., Gerritse, S., van der Heijden, P. G. M., van der Laan, J., van der Vliet, R., & Cruyff, M. (2014). Estimation of Non-Registered Usual Residents in the Netherlands, ultimo September 2010. In Conference of European Statistics Stakeholders, Rome, 24-25 November 2014
https://dspace.library.uu.nl/bitstream/handle/1874/314822/Estimation_of_Non_Registered_Usual_Residents_in_the_Netherlands.pdf?sequence=1
Van Bergen, A. P. L., Aangeenbrug, M., Cruyff, M., Boehning, D., & Van der Heijden, P. G. M. (2014). Factsheet: Resultaten omvangschatting daklozenpopulatie in Utrecht: Raming aantal feitelijke daklozen valt lager uit. Gemeente Utrecht Volksgezondheid.
https://dspace.library.uu.nl/bitstream/handle/1874/314899/70._Factsheet_omvangschatting_feitelijk_daklozen_Utrecht_DEF.pdf?sequence=1
Van der Heijden, P. G. M., Cruyff, M., & van Gils, G. (2014). Schattingen van de omvang van huiselijk geweld in Nederland. Universiteit Utrecht, Faculteit Sociale Wetenschappen, Afdeling Methoden en Statistiek.
https://dspace.library.uu.nl/bitstream/handle/1874/314898/72._HG_rapportage_2014_def.pdf?sequence=1

2013

Scholarly publications

Van der Heijden, P. G. M., Cruts, G., & Cruyff, M. J. L. F. (2013). Methods for population size estimation of problem drug users using a single registration. International Journal of Drug Policy, 24(6), 614-618. https://doi.org/10.1016/j.drugpo.2013.04.002
Oteo Perez, A., Cruyff, M. J. L. F., Benschop, A., & Korf, D. J. (2013). Estimating the Prevalence of Crack Dependence Using Capture-Recapture With Institutional and Field Data: A Three-City Study in the Netherlands. Substance Use & Misuse, 48(1-2), 173-180. https://doi.org/10.3109/10826084.2012.748073

Professional publications

Cruyff, M. J. L. F., van Gils, G., & Van der Heijden, P. G. M. (2013). Simulatie recurrent event model. (In opdracht van het ministerie van Veiligheid en Justitie). Universiteit Utrecht, Departement Methoden en Technieken.
https://dspace.library.uu.nl/bitstream/handle/1874/291078/69.%2520Simulaties%2520recurrent%2520events%2520model.pdf?sequence=1
Van der Heijden, P. G. M., Cruyff, M. J. L. F., & van Gils, G. (2013). Aantallen geregistreerde en niet-geregistreerde burgers uit MOE-landen die in Nederland verblijven. Rapportage schattingen 2009 en 2010. (In opdracht van Ministerie van Binnenlandse Zaken). Universiteit Utrecht, Departement Methoden en Technieken.
https://dspace.library.uu.nl/bitstream/handle/1874/291076/67.%2520MOE%25202009%25202010%2520rapport%252009012013.pdf?sequence=1

2012

Scholarly publications

Van der Heijden, P. G. M., Whittaker, J., Cruyff, M. J. L. F., Bakker, B., & Van der Vliet, R. (2012). People born in the Middle East but residing in the Netherlands: Invariant population size estimates and the role of active and passive covariates. Annals of Applied Statistics, 6(4), 831-852. https://doi.org/10.1214/12-AOAS536

2009

Scholarly publications

Cruyff, M. J. L. F., & Van der Heijden, P. G. M. (2009). Point and interval estimation of the population size using a zero-truncated negative binomial regression model. Biometrical Journal, 50, 1035-1050.

2008

Scholarly publications

Cruyff, M. J. L. F., Bockenholt, U., & Van der Heijden, P. G. M. (2008). Analyzing randomized response data using a doubly zero-inflated Poisson model. In P. Eilers (Ed.), Proceedings of the 23rd International Workshop on Statistical Modelling (pp. 188-193). Universiteit Utrecht, Department of Methodology and Statistics.
Cruyff, M. J. L. F. (2008). Multivariate analysis of randomized response data. [Doctoral thesis 1 (Research UU / Graduation UU), Utrecht University]. Utrecht University.
https://dspace.library.uu.nl/bitstream/handle/1874/27709/cruyff.pdf?sequence=1
Cruyff, M. J. L. F., Bockenholt, U., Van den Hout, A. D. L., & Van der Heijden, P. G. M. (2008). Accounting for self-protective responses in randomized response data from a social security survey using the zero-inflated Poisson model. Annals of Applied Statistics, 2, 316-331.
https://dspace.library.uu.nl/bitstream/handle/1874/32777/93.%2520Accounting%2520for%2520self-protective%2520responses%2520in%2520randomized%2520response%2520data.pdf?sequence=1
Hendrick, T. A. M., Cruyff, M. J. L. F., & Van der Heijden, P. G. M. (2008). The behaviour of the self-protective parameter estimation in models for Randomized response data. In P. Eilers (Ed.), Proceedings of the 23rd International Workshop on Statistical Modelling (pp. 259-262). Universiteit Utrecht, Department of Methodology and Statistics.
Cruyff, M. J. L. F., Van den Hout, A. D. L., & Van der Heijden, P. G. M. (2008). The analysis of randomized-response sum score variables. Journal of the Royal Statistical Society. Series B, 70, 21-30.
https://dspace.library.uu.nl/bitstream/handle/1874/32776/92.The%2520analysis%2520of%2520randomized%2520response%2520sum%2520score%2520variables.pdf?sequence=1

Other output

Cruyff, M. J. L. F., Van den Hout, A. D. L., Bockenholt, U., & Van der Heijden, P. G. M. (2008). Two randomized response models that account for self-protective responses. Paper presented at Paper presented on 7th International Conference on Social Science Methodology RC-33 – Logic and Methodology in Sociology, Naples.

2007

Scholarly publications

Cruyff, M. J. L. F., Van den Hout, A. D. L., Van der Heijden, P. G. M., & Bockenholt, U. (2007). Log-linear randomized response models taking self-protective response behaviour into account. Sociological Methods and Research, 36, 226-282.
Cruyff, M. J. L. F., Bockenholt, U., & Van der Heijden, P. G. M. (2007). A ZIP model accounting for response bias in randomized response. In J. del Castillo, A. Espinal, & P. Puig (Eds.), Proceedings of the 22nd International Workshop on Statistical Modelling, Barcelona, July 2-6 2007 (pp. 205-210). UAB.
https://dspace.library.uu.nl/bitstream/handle/1874/44710/PVDH-82.AZIPmodelaccountingforresponsebiasinrandomizedresponse.pdf?sequence=1

2006

Scholarly publications

Cruyff, M. J. L. F., Van den Hout, A. D. L., Van der Heijden, P. G. M., & Bockenholt, U. (2006). A log-lineair randomized-response model to account for cheating. In Proceedings of the 21th Workshop on Statistical Modelling (pp. 119-126)
https://dspace.library.uu.nl/bitstream/handle/1874/19462/86.%2520a%2520log-linear%2520randomized-resposne%2520model%2520to%2520account%2520for%2520cheating.pdf?sequence=1

2005

Scholarly publications

Van der Heijden, P. G. M., & Cruyff, M. J. L. F. (2005). Bijlage 4: Schatting dark number. In R.W. van Overbeeke, & W. Roorda (Eds.), Doordringen in de Harde Kern; eindrapportage vane een longitudinale studie naar harde kernjongeren. (pp. 109-117). DSP-groep..

2004

Scholarly publications

Cruyff, M. J. L. F., & Van der Heijden, P. G. M. (2004). De `Tafel van elf ' in de nalevingsmonitor. Unknown Publisher.
https://dspace.library.uu.nl/bitstream/handle/1874/23150/heijden_van_der_04_de_tafel.pdf?sequence=1
Amersfoort, P., Cruyff, M. J. L. F., & Van der Heijden, P. G. M. (2004). Doordringen tot de Harde Kern. Unknown Publisher.
Leerkes, A., van San, M., Engbersen, G. B. M., Cruyff, M. J. L. F., & Van der Heijden, P. G. M. (2004). Wijken voor illegalen. Over ruimtelijke spreiding, huisvesting en leefbaarheid. SDU.
https://dspace.library.uu.nl/bitstream/handle/1874/23151/heijden_van_der_04_wijken.pdf?sequence=1

2003

Scholarly publications

Cruyff, M. J. L. F., & Van der Heijden, P. G. M. (2003). Benutting HKS en ontwikkeling vangst-hervangstmethoden. Een onderzoek in opdracht van het Wetenschappelijk Onderzoek- en Documentatiecentrum (WODC) van het Ministerie van Justitie. Universiteit Utrecht, onderzoeksschool IOPS (afd. Utrecht).
https://dspace.library.uu.nl/bitstream/handle/1874/19402/35.%2520benutting%2520HKS%2520en%2520ontwikkleing%2520vangst-hervangstmethoden.pdf?sequence=1
Van der Heijden, P. G. M., Cruyff, M. J. L. F., & van Houwelingen, H. (2003). Estimating the size of a criminal population from police registrations using the truncated Poisson regression model. Statistica Neerlandica, 57 (3), 289–304.
https://dspace.library.uu.nl/bitstream/handle/1874/19406/65.%2520estimating%2520the%2520size%2520of%2520criminal%2520population.pdf?sequence=1
Van der Heijden, P. G. M., Bustami, R., Cruyff, M. J. L. F., Engbersen, G. B. M., & van Houwelingen, H. (2003). Point and interval estimation of the truncated Poisson regression model. Statistical Modelling, 3, 305-322.
https://dspace.library.uu.nl/bitstream/handle/1874/19407/64%2B.%2520point%2520and%2520interval%2520estimation.pfd.pdf?sequence=1

2002

Scholarly publications

Engbersen, G. B. M., Staring, R., Boom, J., Van der Heijden, P. G. M., & Cruyff, M. J. L. F. (2002). Illegale vreemdelingen in Nederland. Omvang, overkomst, verblijf en uitzetting. Erasmus Universiteit: RISBO.
https://dspace.library.uu.nl/bitstream/handle/1874/19397/30.%2520Illegale%2520vreemdelingen%2520in%2520Nederland%2520%282002%29.pdf?sequence=1