De Keijser, Prof. Jos
Jos de Keijser is a professor by special appointment at the Faculty of Behavioural and Social Sciences (BSS). In addition, he is a clinical psychologist and psychotherapist specializing in complex grief. He combines his practical work with his UG research on the treatment of complex grief and suicide prevention.
De Keijser studied psychology at Utrecht University, where he gained his PhD in 1997 for his thesis on guidance and treatment relating to grief. He has written a number of books, in which he explores the psychological symptoms that surviving relatives may experience during a traumatic experience of grief, in particular after a murder or suicide.
De Keijser has frequently appeared in the news in his role as project leader of a scientific study into the grief experienced by the bereaved after the MH17 flight disaster. According to his research, the right of the bereaved to be heard in court positively affected the psychological symptoms experienced by many of them during the grieving process. ‘They received acknowledgement for the anguish that they had been through. The fact that they could still do something for their departed relatives also provided a sense of justice’, says De Keijser.
Previously in the news (mostly in Dutch)
2024
Buiter,
M. Y., Boelen, P. A., Kunst, M., Gerlsma, C., de
Keijser, J., Nijborg, L. C. J., & Lenferink, L. I.
M. (2024). Corrigendum to “The mediating role of
state anger in the associations between intentions to participate
in the criminal trial and psychopathology in traumatically bereaved
people” [International Journal of Law and Psychiatry volume
85 (2022) 101840] (International Journal of Law and Psychiatry
(2022) 85, (S0160252722000668),
(10.1016/j.ijlp.2022.101840)). International
Journal of Law and Psychiatry, 95, Article
102008. https://doi.org/10.1016/j.ijlp.2024.102008
Nijborg,
L. C. J., Kunst, M. J. J., Westerhof, G. J., de Keijser,
J., & Lenferink, L. I. M. (2024).
Grief and delivering a statement in court: a longitudinal
mixed-method study among homicidally bereaved people.
European Journal of Psychotraumatology,
15(1), Article 2297541. https://doi.org/10.1080/20008066.2023.2297541
Bovendeerd,
B., de Jong, K., de Groot, E., & de Keijser,
J. (2024). Patient perspectives on systematic client
feedback in Dutch outpatient mental healthcare, a qualitative case
reports study. BMC Health Services
Research, 24, Article 957. https://doi.org/10.1186/s12913-024-11404-2
Boelen,
PA., Eisma, MC., de Keijser, J.,
& Lenferink, LI. M. (2024). Treatment Gap in
Mental Health Care for Victims of Road Traffic Accidents.
Clinical Psychology and Psychotherapy,
31(2), Article e2970. https://doi.org/10.1002/cpp.2970
2023
Nijborg,
L., Westerhof, G., Kunst, M., de Keijser, J.,
& Lenferink, L. (Accepted/In press).
Distinguishing prolonged grief and well-being in the context
of a criminal trial: A longitudinal factor analytic study among
homicidally bereaved people. European Journal of
Psychotraumatology.
de
Keijser, J., Boelen, P., & Smid, G. (Eds.) (2023).
Handboek traumatische rouw (herziening).
Boom.
Lenferink,
L. I. M., Eisma, M. C., Buiter, M. Y., de
Keijser, J., & Boelen, P. A. (2023). Online
cognitive behavioral therapy for prolonged grief after traumatic
loss: a randomized waitlist-controlled trial.
Cognitive Behaviour Therapy, 52(5),
508-522. https://doi.org/10.1080/16506073.2023.2225744
de
Keijser, J. (2023). Rouw op de werkvloer: stand van
zaken. Quintesse, praktisch nascholingstijdschrift
over bedrijfs- en verzekeringsgeneeskunde,
12(4).
Reitsma,
L., Boelen, P. A., de Keijser, J., &
Lenferink, L. I. M. (2023). Self-guided online
treatment of disturbed grief, posttraumatic stress, and depression
in adults bereaved during the COVID-19 pandemic: A randomized
controlled trial. Behaviour Research and
Therapy, 163, Article 104286. https://doi.org/10.1016/j.brat.2023.104286
de
Keijser, J., Kunst, M., Westerhof, G., Nijborg, L.,
& Lenferink, L. (2023). Spreekrecht voor
nabestaanden. LetselschadeNEWS,
49(1).
Bovendeerd,
B., de Jong, K., de Groot, E., Moerbeek, M., Hafkenscheid,
A., & de Keijser, J. (2023). The effect of
therapist characteristics on the use and outcome of systematic
client feedback in outpatient mental healthcare.
Clinical Psychology and Psychotherapy,
30(5), 1146-1157. https://doi.org/10.1002/cpp.2873
2022
Lenferink,
L. I. M., Nickerson, A., Kashyap, S., de Keijser,
J., & Boelen, P. A. (2024). Associations of
Dimensions of Anger With Distress Following Traumatic
Bereavement. Psychological Trauma: Theory,
Research, Practice, and Policy, 16(2),
176–183. https://doi.org/10.1037/tra0001275
Boelen,
P. A., Eisma, M. C., de Keijser,
J., & Lenferink, L. I. M. (2022).
Concurrent associations of dimensions of anger with
posttraumatic stress, depression, and functional impairment
following non-fatal traffic accidents. European
Journal of Psychotraumatology, 13(1), Article
2068912. https://doi.org/10.1080/20008198.2022.2068912
de
Keijser, J., & Marijnissen, R. (2022). De dood
vanuit psychologisch perspectief. In R. Marijnissen, K.
Chambaere, & R. Oude Voshaar (Eds.), Handboek Psychiatrie
in de laatste levensfase (pp. 27-43). Boom.
Snijdewind,
M. C., de Keijser, J., Casteelen, G., Boelen, P. A.,
& Smid, G. E. (2022). “I lost so much more than my
partner” – Bereaved partners’ grief experiences
following suicide or physician-assisted dying in case of a mental
disorder. BMC Psychiatry,
22(1), Article 454. https://doi.org/10.1186/s12888-022-04098-5
Lenferink,
L., Carina, H., Eisma, M., Knaevelsrud, C.,
Smid, G. E., de Keijser, J., & Boelen, P. A.
(2022). New tools to assess DSM-5-TR and ICD-11 prolonged
grief disorder in research and practice: Research in about 1000
bereaved people. Abstract from European Grief
Conference, Copenhagen, Denmark.
Snijdewind,
M. C., de Keijser, J., Casteelen, G., Boelen, P. A.,
& Smid, G. E. (2022). "Only One Way Out"-Partners'
Experiences and Grief Related to the Death of Their Loved One by
Suicide or Physician-Assisted Dying Due to a Mental
Disorder. Frontiers in Psychiatry,
13, Article 894417. https://doi.org/10.3389/fpsyt.2022.894417
Buiter,
M. Y., Boelen, P. A., Kunst, M., Gerlsma, C., de
Keijser, J., & Lenferink, L. I. M. (2022).
The mediating role of state anger in the associations between
intentions to participate in the criminal trial and psychopathology
in traumatically bereaved people. International
Journal of Law and Psychiatry, 85, Article
101840. https://doi.org/10.1016/j.ijlp.2022.101840
Boelen,
P. A., Eisma, M. C., de Keijser,
J., & Lenferink, L. I. M. (2022).
Traumatic stress, depression, and non-bereavement grief
following non-fatal traffic accidents: Symptom patterns and
correlates. PLoS ONE, 17(2),
Article e0264497. https://doi.org/10.1371/journal.pone.0264497
2021
Bovendeerd,
B., de Jong, K., de Groot, E., Moerbeek, M., & de
Keijser, J. (2022). Enhancing the effect of
psychotherapy through systematic client feedback in outpatient
mental healthcare: A cluster randomized trial.
Psychotherapy research, 32(6),
710-722. https://doi.org/10.1080/10503307.2021.2015637
Lenferink,
L. I. M., Eisma, M. C., Smid, G. E., de
Keijser, J., & Boelen, P. A. (2022). Valid
measurement of DSM-5 persistent complex bereavement disorder and
DSM-5-TR and ICD-11 prolonged grief disorder: The Traumatic Grief
Inventory-Self Report Plus (TGI-SR+).
Comprehensive Psychiatry, 112,
Article 152281. https://doi.org/10.1016/j.comppsych.2021.152281
Lenferink,
L. I. M., van den Munckhof, M. J. A., de Keijser,
J., & Boelen, P. A. (2021). DSM-5-TR prolonged
grief disorder and DSM-5 posttraumatic stress disorder are related,
yet distinct: confirmatory factor analyses in traumatically
bereaved people. European Journal of
Psychotraumatology, 12(1). https://doi.org/10.1080/20008198.2021.2000131
de
Keijser, J. (2021). Het lichaam in rouw. In E.
H. M. Eurelings, C. G. Kooiman, & M. H. Lub (Eds.), Het
lichaam en psychisch functioneren (pp. 279-296). Bohn,
Stafleu, Van Loghum.
Reitsma,
L., Boelen, P. A., de Keijser, J., &
Lenferink, L. I. M. (2021). Online treatment of
persistent complex bereavement disorder, posttraumatic stress
disorder, and depression symptoms in people who lost loved ones
during the COVID-19 pandemic: study protocol for a randomized
controlled trial and a controlled trial. European
Journal of Psychotraumatology, 12(1), Article
1987687. https://doi.org/10.1080/20008198.2021.1987687
2020
Gerlsma,
C., Lugtmeyer, V., Van Denderen, M., & De Keijser,
J. (2022). Revenge and forgiveness after
victimization: psychometric evaluation of a Dutch version of the
TRIM intended for victims and offenders. Current
Psychology, 41, 7142–7154. https://doi.org/10.1007/s12144-020-01283-1
Boelen,
P. A., Eisma, M. C., Smid, G. E., de Keijser,
J., & Lenferink, L. I. M. (2021).
Remotely delivered cognitive behavior therapy for disturbed
grief during the COVID-19 crisis: Challenges and
opportunities. Journal of Loss &
Trauma, 26(3), 211-219. https://doi.org/10.1080/15325024.2020.1793547
Lenferink,
L., de Keijser, J., Eisma, M.,
Smid, G., & Boelen, P. A. (2021). Treatment gap in
bereavement care: (Online) bereavement support needs and use after
traumatic loss. Clinical Psychology and
Psychotherapy, 28(4), 907-916. https://doi.org/10.1002/cpp.2544
Lenferink,
L., de Keijser, J., Smid, G., & Boelen, P.
A. (2020). Cognitive therapy and EMDR for reducing
psychopathology in bereaved people after the MH17 plane crash:
Findings from a randomized controlled trial.
Traumatology, 26(4), 427-437. https://doi.org/10.1037/trm0000253
de
Keijser, J., Snijdewind, M., Casteelen, G., & Smid, G.
(2020). Complexe rouw: doodsoorzaak heeft invloed.
Nederlands Tijdschrift voor Geneeskunde,
164(26/27), Article D4932.
Lenferink,
L., de Keijser, J., Eisma, M.,
Smid, G., & Boelen, P. (2020). Online
cognitive–behavioural therapy for traumatically bereaved
people: study protocol for a randomised waitlist-controlled
trial. BMJ Open, 10(9),
Article e035050. https://doi.org/10.1136/bmjopen-2019-035050
2019
Lenferink,
L. I. M., de Keijser, J., Wessel,
I., & Boelen, P. A. (2019). Cognitive behavioural
therapy and mindfulness for relatives of missing persons: A pilot
study. Pilot and Feasibility Studies,
5, Article 93. https://doi.org/10.1186/s40814-019-0472-z
Lenferink,
L., Nickerson, A., Smid, G., de Keijser, J.,
& Boelen, P. (2019). Disturbed grief, posttraumatic
stress, and depression symptoms in disaster-bereaved people:
Symptom-profiles, temporal associations, and treatment.
Paper presented at 9th World Congress of Behavioural and Cognitive
Therapies, Berlin, Germany.
Lenferink,
L., Nickerson, A., de Keijser, J., Smid, G.,
& Boelen, P. A. (2019). Grief, posttraumatic stress,
and depression following MH17 plane disaster: A four-wave
longitudinal study. Paper presented at 16th Conference
of European Society for Traumatic Stress Studies (ESTSS),
Rotterdam, Netherlands.
Boelen,
P., Smid, G. E., Verloop, B., de Keijser, J.,
& Lenferink, L. (2019). Patterns, predictors, and
prognostic validity of Persistent Complex Bereavement Disorder
(PCBD) symptoms in recently bereaved adults: A latent class
analysis. JOURNAL OF NERVOUS AND MENTAL
DISEASE, 207(11), 913-920. https://doi.org/10.1097/NMD.0000000000001053
Lenferink,
L. I. M., Nickerson, A., de Keijser, J., Smid,
G. E., & Boelen, P. A. (2019). Reciprocal Associations
Among Symptom Levels of Disturbed Grief, Posttraumatic Stress, and
Depression Following Traumatic Loss: A Four-Wave Cross-Lagged
Study. Clinical Psychological Science,
7(6), 1330-1339. https://doi.org/10.1177/2167702619858288
Bovendeerd,
B., de Jong, K., Colijn, S., de Groot, E., Hafkenscheid, A.,
Moerbeek, M., & de Keijser, J. (2019).
Systematic client feedback to brief therapy in basic mental
healthcare: study protocol for a four-centre clinical trial.
BMJ Open, 9(5), Article e025701. https://doi.org/10.1136/bmjopen-2018-025701
2018
Lenferink,
L., Nickerson, A., de Keijser, J., Smid, G. E.,
& Boelen, P. A. (2020). Trajectories of grief,
depression, and posttraumatic stress in disaster-bereaved
people. Depression and Anxiety,
37(1), 35-44. https://doi.org/10.1002/da.22850
Boelen,
P. A., Djelantik, A. A. A. M. J., de Keijser,
J., Lenferink, L. I. M., & Smid, G. E.
(2019). Further validation of the Traumatic Grief
Inventory-Self Report (TGI-SR): A measure of persistent complex
bereavement disorder and prolonged grief disorder.
Death Studies, 43(6), 351-364. https://doi.org/10.1080/07481187.2018.1480546
Lenferink,
L. I. M., de Keijser, J., van Denderen, M. Y.,
& Boelen, P. A. (2019). Latent classes of posttraumatic
stress symptoms in two samples of bereaved people.
International journal of stress management,
26(4), 401-410. https://doi.org/10.1037/str0000121
de
Keijser, J., Lenferink, L., & Smid, G. E.
(2018). Aanslagen en rampen. In Handboek
Traumatische Rouw (pp. 117-128). Boom.
Lenferink,
L. I. M., de Keijser, J., Wessel,
I., & Boelen, P. A. (2018). Cognitive-behavioral
correlates of psychological symptoms among relatives of missing
persons. International Journal of Cognitive
Therapy, 11(3), 311–324. https://doi.org/10.1007/s41811-018-0024-y
Eisma,
M., & de Keijser, J. (2018).
Dodelijke verkeersongevallen. In J. de Keijser, P.
Boelen, & G. Smid (Eds.), Handboek traumatische rouw
(pp. 104-116). Boom.
de
Keijser, J., Boelen, P., & Smid, G. (2018).
Handboek traumatische rouw. Boom.
de
Keijser, J. (2018). Suïcide. In J. de
Keijser, P. Boelen, & G. Smid (Eds.), Handboek traumatische
rouw (pp. 77-92). Boom.
van
Denderen, M., de Keijser, J., Stewart,
R., & Boelen, P. A. (2018). Treating complicated
grief and posttraumatic stress in homicidally bereaved individuals:
A randomized controlled trial. Clinical psychology
& psychotherapy, 25(4), 497-508. https://doi.org/10.1002/cpp.2183
Lenferink,
L., de Keijser, J., Wessel, I.,
& Boelen, P. A. (2018). Vermissing. In J. de
Keijser, P. Boelen, & G. Smid (Eds.), Handboek Traumatische
Rouw (1 ed., pp. 129 - 141). Boom.
2017
Lenferink,
L. I. M., de Keijser, J., Wessel,
I., de Vries , D., & Boelen, P. A. (2019). Toward
a better understanding of psychological symptoms in people
confronted with the disappearance of a loved one: A systematic
review. Trauma, Violence, & Abuse,
20(3), 287-302. https://doi.org/10.1177/1524838017699602
Lenferink,
L. I. M., de Keijser, J., Piersma, E., &
Boelen, P. A. (2018). I've changed, but I'm not less happy:
Interview study among nonclinical relatives of long-term missing
persons. Death Studies,
42(6), 346-355. https://doi.org/10.1080/07481187.2017.1347213
Smid,
G. E., Lenferink, L., de Keijser, J.,
& Boelen, P. A. (2017). Ambiguous loss in relatives
of missing or disappeared persons. Paper presented at
International Conference on Missing Children and Adults, Dundee,
United Kingdom.
Boelen,
P. A., Lenferink, L., & de Keijser,
J. (2017). Cognitive-behavioral correlates of
psychological symptoms among relatives of missing
persons. Paper presented at International Conference on
Missing Children and Adults, Dundee, United Kingdom.
Lenferink,
L., Piersma, E., de Keijser, J., Smid, G. E.,
& Boelen, P. A. (2017). Cognitive therapy and eye
movement desensitization and reprocessing for reducing
psychopathology among disaster-bereaved individuals: Study protocol
for a randomised controlled trial. European
Journal of Psychotraumatology, 8(1), Article
1388710. https://doi.org/10.1080/20008198.2017.1388710
Lenferink,
L., Eisma, M., de Keijser, J.,
& Boelen, P. A. (2017). Grief rumination mediates the
association between self-compassion and psychopathology in
relatives of missing persons. European Journal of
Psychotraumatology, 8(sup6), Article 1378052.
https://doi.org/10.1080/20008198.2017.1378052
Lenferink,
L. I. M., de Keijser, J., Smid, G. E.,
Djelantik, A. A. A. M. J., & Boelen, P. A. (2017).
Prolonged grief, depression, and posttraumatic stress in
disaster-bereaved individuals: Latent class analysis.
European Journal of Psychotraumatology,
8(1), Article 1298311. https://doi.org/10.1080/20008198.2017.1298311
de
Jong, K., Tiemens, B., Verbraak, M., Beekman, A. F. T., Bockting,
C. L. H., Bouman, T. K., Castelein, S.,
van Dyck, R., Emmelkamp, P. M. G., van der Feltz-Cornelis, C. M.,
van der Gaag, M., Huibers, M. J. H., Hutschemaekers, G. J.
M., de Keijser, A., Keijsers, G. P. J., Koekkoek, B.,
Korrelboom, K., van Minnen, A., van Oppen, P. C., ... Zitman, F. G.
(2017). Red ROM als kwaliteitsinstrument.
Tijdschrift voor Psychiatrie, 59,
242-244.
Lenferink,
L. I. M., Eisma, M. C., de Keijser,
J., & Boelen, P. A. (2017). Self-compassion,
grief rumination, and psychopathology among relatives of missing
persons: A mediation analysis. Paper presented at 11th
International Conference on Grief and Bereavement in Contemporary
Society, Lisbon, Portugal.
Lenferink,
L. I. M., de Keijser, J., Wessel,
I., de Vries, D., & Boelen, P. A. (2017).
Toward a better understanding of psychological symptoms
in people confronted with the disappearance of a loved one: A
systematic review. Poster session presented at 15th
conference of European Society for Traumatic Stress Studies
(ESTSS), Odense, Denmark.
2016
Lenferink,
L. I. M., van Denderen, M. Y., de Keijser,
J., Wessel, I., & Boelen, P. A. (2017).
Prolonged grief and post-traumatic stress among relatives of
missing persons and homicidally bereaved individuals: A comparative
study. Journal of Affective Disorders,
209, 1-2. https://doi.org/10.1016/j.jad.2016.11.012
Lenferink,
L. I. M., Wessel, I., de Keijser,
J., & Boelen, P. A. (2016). Cognitive behavioural
therapy for psychopathology in relatives of missing persons: Study
protocol for a pilot randomised controlled trial.
Pilot and Feasibility Studies,
2(19). https://doi.org/10.1186/s40814-016-0055-1
de
Groot, M., & de Keijser, A. (2016). De
opvang van nabestaanden na een suïcide. In A. Kerkhof,
& B. V. L. (Eds.), Behandeling van suicidaal gedrag in de
praktijk van de GGZ (2 ed., Vol. 1, pp. 301-326). Bohn,
Stafleu, Van Loghum. https://doi.org/10.1007/978-90-368-0972-6_20
Boelen,
P. A., de Keijser, J., Spuij, M., & Smid, G.
(2016). Een nieuw initiatief voor het verbeteren van
psychosociale hulp na verlies: het Landelijk Centrum Traumatische
Rouw. Cogiscope: tijdschrift over gevolgen van
schokkende gebeurtenissen, 2016(3),
6-11.
de
Beurs, D. P., de Groot, M. H., de Keijser, J., van
Duin, E., de Winter, R. F. P., & Kerkhof, A. J. F. M. (2016).
Evaluation of benefits to patients of training mental health
professionals in suicide guidelines: cluster randomized
trial. The British Journal of
Psychiatry, 208(5), 477-483. https://doi.org/10.1192/bjp.bp.114.156208
de
Keijser, J. (2016). Het zelfgekozen levenseinde:
Levensbeeindiging als oplossing? In M. Vink, S. Teunisse,
& H. Geertsema (Eds.), Klaar met leven? Ouderen en het
levenseinde in psychologisch perspectief (pp. 11-25). Bohn,
Stafleu, Van Loghum. https://doi.org/10.1007/978-90-368-1094-4_2
van
Denderen, M., de Keijser, J., Huisman,
M., & Boelen, P. A. (2016). Prevalence and
Correlates of Self-Rated Posttraumatic Stress Disorder and
Complicated Grief in a Community-Based Sample of Homicidally
Bereaved Individuals. Journal of Interpersonal
Violence, 31(2), 207-227. https://doi.org/10.1177/0886260514555368
Boelen,
P. A., van Denderen, M., & de Keijser, J. (2016).
Prolonged Grief, Posttraumatic Stress, Anger, and Revenge
Phenomena Following Homicidal Loss: The Role of Negative Cognitions
and Avoidance Behaviors. Homicide
Studies, 20(2), 177-195. https://doi.org/10.1177/1088767915580674
Steendam,
M., de Keijser, A., de Beurs, D., & Wenning, H.
(2016). Suicidaliteit in de huisartsenpraktijk. In A.
Kerkhof, & B. van Luyn (Eds.), Behandeling van suicidaal
gedrag in de praktijk van de GGZ (2 ed., Vol. 1, pp. 123-134).
Bohn, Stafleu, Van Loghum. https://doi.org/10.1007/978-90-368-0972-6
2015
de
Groot, M., de Beurs, D. P., de Keijser, J., &
Kerkhof, A. F. J. M. (2015). An e-learning supported
train-the-trainer program to implement a suicide practice
guideline: Rationale, content and dissemination in Dutch mental
health care. Internet Interventions,
2(3), 323-329. https://doi.org/10.1016/j.invent.2015.04.004
Lenferink,
L. I. M., Wessel, I., de Keijser,
J., & Boelen, P. A. (2015). Cognitieve
gedragstherapie met mindfulness voor verwanten van langdurig
vermiste personen: Studie-protocol "Leven met
Vermissing". Paper presented at VGCT Najaarscongres
2015, Veldhoven.
Boelen,
P. A., de Keijser, J., & Smid, G. (2015).
Cognitive–behavioral variables mediate the impact of
violent loss on post-loss psychopathology.
Psychological Trauma, 7(4), 382-390.
https://doi.org/10.1037/tra0000018
Van
der Velden, P., Bosmans, M., Bouman, T., de
Keijser, A., Kleber, R., & Schut, H. (2015). De
belasting van longitudinaal trauma-onderzoek: Een prospectieve
studie naar veronderstelde en onvermoede voorspellers.
De Psycholoog, 50, 44-54.
de
Beurs, D. P., Fokkema, M., de Groot, M., de Keijser,
J., & Kerkhof, A. JFM. (2015). Longitudinal
Measurement invariance of the Beck Scale for Suicide
Ideation. Psychiatry Research,
225(3), 368-373. https://doi.org/10.1016/j.psychres.2014.11.075
van
Denderen, M., de Keijser, J., Kleen, M., & Boelen,
P. A. (2015). Psychopathology among homicidally bereaved
individuals: A systematic review. Trauma,
Violence, & Abuse, 16(1), 70-80. https://doi.org/10.1177/1524838013515757
de
Beurs, D. P., de Keijser, J., de Groot, M.,
Mokkenstorm, J., van Duijn, E., de Winter, R. F., & Kerkhof, A.
JFM. (2015). The effect of an e-learning supported
Train-the-Trainer program on implementation of suicide guidelines
in mental health care. Journal of Affective
Disorders, 175, 446-453. https://doi.org/10.1016/j.jad.2015.01.046
de
Beurs, D. P., Bosmans, J. E., de Groot, M. H., de Keijser,
J., van Duijn, E., de Winter, R. F. P., & Kerkhof, A. J.
F. M. (2015). Training mental health professionals in suicide
practice guideline adherence: Cost-effectiveness analysis alongside
a randomized controlled trial. Journal of
Affective Disorders, 186, 203-210. https://doi.org/10.1016/j.jad.2015.07.028
2014
De
Beurs, D. P., de Vries, A. LM., de Groot, M. H., de Keijser,
J., & Kerkhof, A. JFM. (2014). Applying Computer
Adaptive Testing to Optimize Online Assessment of Suicidal
Behavior: A Simulation Study. Journal of Medical
Internet Research, 16(9), Article e207. https://doi.org/10.2196/jmir.3511
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