Biography
Femke L. Truijens is Assistant Professor Clinical Psychology, conducting interdisciplinary research on the borderline of clinical psychology, methodology and philosophy of science.
Dr. Truijens focuses on the most basic but often overlooked questions of clinical research: What counts as evidence? Are data automatically valid when collected by validated measures? How do people actually quantify their experienced complaints when they score symptom measures? And how are therapeutic changes captured by aggregated pre-post differences? By taking a qualitative stance to quantitative data collection, dr. Truijens explores clinical validity in clinical research. In her PhD at Ghent University, Belgium, she analysed empirical data from the Ghent Psychotherapy Study (a mixed-method RCT on differential efficacy of cognitive-behavioral and psychodynamic treatment for depression) to study validity of data and evidence in randomized controlled therapy research. At ESSB, she conducts a stakeholder study on how validity is understood and secured in Routine Outcome Measurement in the Dutch GGZ. She develops and teaches Severe Mental Illness in Urban Contexts, which explores pluralist perspectives on diagnostics and the recovery paradigm. Dr. Truijens initiated and chairs the Qualitative Research Collective GGZ in The Netherlands, and initiated and chairs the international SPR interest group Evidence for Guidelines. In her private practice, dr. Truijens provides psychotherapy for gifted adults and adolescents with mental health issues.
Research Interests: Validity, Patient-reported measurement, response shifts, routine outcome measurement, psychotherapy research, qualitative & mixed method research, ethics and integrity, reflexivity
Clinical interests: Psychotherapy (psychodynamic, cognitive, narrative), diagnostic systems, patient-centred mental health care (recovery paradigm)
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Onderzoeksinteresses: validiteit, zelfrapportagematen, response shifts, routine outcome measurement, psychotherapieonderzoek, kwalitatief & mixed methodonderzoek, ethiek&integriteit, reflexiviteit
Klinische interesses: psychotherapie (psychodynamisch, cognitief, narratief), psychodiagnostische systemen, herstelgerichte psychiatrie
Erasmus School of Social and Behavioural Sciences
Assistant professor | Clinical Psychology
- truijens@essb.eur.nl
- Room
- T13-20
- Location
- Burg. Oudlaan 50, Rotterdam
More information
Work
- Femke Truijens, Melissa Miléna De Smet, Martijn Vandevoorde, Mattias Desmet & Reitske Meganck (2023) - What is it like to be the object of research? On meaning making in self-report measurement and validity of data in psychotherapy research - Methods in Psychology, 8 - doi: 10.1016/j.metip.2023.100118 - [link]
- Reitske Meganck, Mattias Desmet, Kimberly Van Nieuwenhove, Melissa De Smet, Vicky Hennissen, Femke Truijens, Rosa De Geest, Goedele Hermans, Claudi Bockting, Ufuoma Angelica Norman, Tom Loeys, Ruth Inslegers, Tim Van Den Abeele, Chris Baeken & Stijn Vanheule (2023) - The Ghent Psychotherapy Study: A Pragmatic, Stratified, Randomized Parallel Trial into the Differential Efficacy of Psychodynamic and Cognitive-Behavioral Interventions in Dependent and Self-Critical Depressive Patients - Psychotherapy and Psychosomatics, 92 (4), 267-278 - doi: 10.1159/000531643 - [link]
- Donna A. de Maat, Ruth Van der Hallen, Pieter F.A. de Nijs, Kirsten Visser, Dennis Bastiaansen, Femke L. Truijens, Elisabeth H.M. van Rijen, Wietske Ester, Peter Prinzie, Pauline W. Jansen & Linda P. Dekker (2023) - Children with Autism Spectrum Disorder in Times of COVID-19: Examining Emotional and Behavioral Problems, Parental Well-Being, and Resilience - Journal of Autism and Developmental Disorders - doi: 10.1007/s10803-022-05846-y - [link]
- Linde Hooijman, Ruth Van der Hallen, Anneke Louwerse, K (Kirsten) Visser, Leontine ten Hoopen, Pieter de Nijs, Gwen Dieleman, WA (Wietske) Ester, Susan van Rijen, Femke Truijens & Linda Dekker (2022) - Parent-reported impact of COVID-19 on children and adolescents with ASD.
- Linda Dekker, Linde Hooijman, Anneke Louwerse, Kirsten Visser, Dennis Bastiaansen, Leontine Ten Hoopen, Pieter De Nijs, Gwen Dieleman, Wietske Ester, Susan Van Rijen, Femke Truijens & Ruth Van Der Hallen (2022) - Impact of the COVID-19 pandemic on children and adolescents with autism spectrum disorder and their families: A mixed-methods study protocol - BMJ Open, 12 (1) - doi: 10.1136/bmjopen-2021-049336 - [link]
- Femke L. Truijens, Mattias Desmet, Eva De Coster, Horanka Uyttenhove, Bram Deeren & Reitske Meganck (2022) - When quantitative measures become a qualitative storybook: A phenomenological case analysis of validity and performativity of questionnaire administration in psychotherapy research - Qualitative Research in Psychology, 19 (1), 244-287 - doi: 10.1080/14780887.2019.1579287 - [link]
- Femke Truijens, Melissa Miléna De Smet, Reitske Meganck & Mattias Desmet (2021) - Evidence for the non-evidenced: An argument for integrated methods and conceptual discussion on what needs to be evidenced in psychotherapy research - Philosophy, Psychiatry and Psychology, 28 (2), 137-140 - doi: 10.1353/ppp.2021.0021 - [link]
- Femke Truijens, Melissa Miléna De Smet, Mattias Desmet & Reitske Meganck (2021) - Validity of data as precondition for evidence: a methodological analysis of what is taken to count as evidence in psychotherapy research - Philosophy, Psychiatry and Psychology, 28 (2), 115-128 - doi: 10.1353/ppp.2021.0018 - [link]
- Femke Truijens (2021) - How questionnaires shape experienced symptoms: A qualitative case comparison study of questionnaire administration in psychotherapy research - Qualitative Research in Psychology, 19 (3), 806-830 - doi: 10.1080/14780887.2021.1886383 - [link]
- Mattias Desmet, Kimberly Van Nieuwenhove, Melissa De Smet, Reitske Meganck, Bram Deeren, Isabel Van Huele, Elien Decock, Eveline Raemdonck, Shana Cornelis, Femke Truijens, Katrine Zeuthen & Günter Schiepek (2021) - What too strict a method obscures about the validity of outcome measures - Psychotherapy Research, 31 (7), 882-894 - doi: 10.1080/10503307.2020.1865584 - [link]
- Juri Krivzov, Liza Notaerts, Kimberly Van Nieuwenhove, Reitske Meganck, Femke L. Truijens & Astrid Goossens (2021) - Das Fehlen von Fehlerberichten in veröffentlichten Psychotherapie-Fallstudien: Implikationen für die Illusionierung von Forschung und Praxis - European Journal of Psychotherapy and Counselling, 23 (2), 139-155 - doi: 10.1080/13642537.2021.1923051 - [link]
- Melissa Miléna De Smet, Reitske Meganck, Rosa De Geest, Ufuoma Angelica Norman, Femke Truijens & Mattias Desmet (2020) - What "good outcome" means to patients: Understanding recovery and improvement in psychotherapy for major depression from a mixed-methods perspective - Journal of Counseling Psychology, 67 (1), 25-39 - doi: 10.1037/cou0000362 - [link]
- Femke Truijens (2019) - The story of 'the data'.: On validity of data and performativity of research participation in psychotherapy research. - [link]
- Yvonne D Vinke, Femke Truijens, Esmee van Polanen Petel & Arnold A P van Emmerik (2019) - The efficacy of a single imaginal exposure-writing assignment in reducing posttraumatic stress and depressive symptoms: A pilot study - Journal of Clinical Psychology, 75 (9), 1519-1526 - doi: 10.1002/jclp.22802
- Melissa Miléna De Smet, Reitske Meganck, Kimberly Van Nieuwenhove, Femke Truijens & Mattias Desmet (2019) - No Change? A grounded theory analysis of depressed patients' perspectives on non-improvement in psychotherapy - Frontiers in Psychology, 10 - doi: 10.3389/fpsyg.2019.00588
- Femke L Truijens, Shana Cornelis, Mattias Desmet, Melissa M De Smet & Reitske Meganck (2019) - Validity beyond measurement: Why psychometric validity Is insufficient for valid psychotherapy research - Frontiers in Psychology, 10 - doi: 10.3389/fpsyg.2019.00532
- Femke Truijens, Levin Zühlke-van Hulzen & Stijn Vanheule (2019) - To manualize, or not to manualize: Is that still the question? A systematic review of empirical evidence for manual superiority in psychological treatment - Journal of Clinical Psychology, 75 (3), 329-343 - doi: 10.1002/jclp.22712
- Evi Verbeke, Stijn Vanheule, Joachim Cauwe, Femke Truijens & Brenda Froyen (2019) - Coercion and power in psychiatry: A qualitative study with ex-patients - Social Science and Medicine, 223, 89-96 - doi: 10.1016/j.socscimed.2019.01.031 - [link]
- Dries Dulsster, Stijn Vanheule, Joachim Cauwe, Junior Ingouf & Femke Truijens (2019) - Lacanian talking therapy considered closely: A qualitative study - Psychoanalytic Psychology, 36 (1), 19-28 - doi: 10.1037/PAP0000187
- Linda Dekker, Femke Truijens, Susan van Rijen & Ruth Van der Hallen (25 August 2022) - Impact van COVID-19 op gezinnen met kinderen met ASS: De impact op ouders & blik op de toekomst. [Webinar]
- LP (Linda) Dekker, FL (Femke) Truijens, L.W.E. (Linde) Hooijman & RER (Ruth) Van der Hallen (10 December 2021) - The impact of COVID-19 on families with children with ASD – Implications for (mental) health care and educational professionals. (WEBINAR)
- Femke Truijens (2022) - Trends in Guideline Development and Implementation of Psychotherapy in Mental Health Care Systems - Dr Felicitas Rost & Dr Femke Truijens
- Femke Truijens (2022) - Trends in guideline development and implementation of psychotherapy in mental health care systems.
- Femke Truijens (2022) - “In hindsight, I was more depressed than I thought”. Response shifts in psychotherapy research.
- Linda Dekker, Linde Hooijman, Ruth Van der Hallen, Anneke Louwerse, K (Kirsten) Visser, Dennis Bastiaansen, L ten Hoopen, Pieter de Nijs, Gwen Dieleman, WA (Wietske) Ester, Susan van Rijen & Femke Truijens (2022) - Care and informational needs of parents of children with ASD during the COVID-19 pandemic.
- Femke Truijens (2021) - ‘Numbers are words too’: Taking a qualitative stance on quantitative data collection and measurement validity in psychotherapy research
- Femke Truijens (2020) - How valid is our understanding of validity in psychotherapy research?
- Ruth Van der Hallen, Linde Hooijman, Anneke Louwerse, K (Kirsten) Visser, Dennis Bastiaansen, L ten Hoopen, Pieter de Nijs, Gwen Dieleman, WA (Wietske) Ester, Susan van Rijen, Femke Truijens & Linda Dekker (2020) - The impact of COVID-19 on children and adolescents with autism spectrum disorder and their families
- Femke Truijens (2020) - When questionnaires shape answers. On “the data” as foundation of Evidence-Based Treatment
- Femke Truijens (2019) - How valid is our understanding of validity? Discussion on the practical use and limits of validity in psychological research and practice.
- Femke Truijens (2019) - How questionnaires shape answers. On validity and performativity of ‘the data’ in psychotherapeutic research.
- Femke Truijens (2022) - Impact Journey Erasmus University Rotterdam 2022
- Linda Dekker, Ruth Van der Hallen, Susan van Rijen & Femke Truijens (2021) - Closing webinar on the impact of the COVID-19 pandemic on families with children with autism spectrum disorder
- LP (Linda) Dekker, RER (Ruth) Van der Hallen, EHM (Susan) van Rijen, FL (Femke) Truijens, K (Kirsten) Visser, S.C. (Anneke) Louwerse & D Bastiaansen (2020) - ZonMW – COVID-19 second wave focus area 2 – Bottom up
- Femke Truijens (2020) - Most Valuable Contribution to the Integration of Science and Practice in Psychology
Nederlandse Vereniging voor Psychotherapie
- Start date approval
- November 2023
- End date approval
- November 2026
- Place
- NEDERLAND
- Description
- Lid Wetenschapsraad/Onderzoeksfonds NVP
- Femke Truijens (2022) - Trends in Guideline Development and Implementation of Psychotherapy in Mental Health Care Systems - Dr Felicitas Rost & Dr Femke Truijens
- Femke Truijens (2022) - Trends in guideline development and implementation of psychotherapy in mental health care systems.
- Femke Truijens (2022) - “In hindsight, I was more depressed than I thought”. Response shifts in psychotherapy research.
- Linda Dekker, Linde Hooijman, Ruth Van der Hallen, Anneke Louwerse, K (Kirsten) Visser, Dennis Bastiaansen, L ten Hoopen, Pieter de Nijs, Gwen Dieleman, WA (Wietske) Ester, Susan van Rijen & Femke Truijens (2022) - Care and informational needs of parents of children with ASD during the COVID-19 pandemic.
- Femke Truijens (2021) - ‘Numbers are words too’: Taking a qualitative stance on quantitative data collection and measurement validity in psychotherapy research
- Femke Truijens (2020) - How valid is our understanding of validity in psychotherapy research?
- Ruth Van der Hallen, Linde Hooijman, Anneke Louwerse, K (Kirsten) Visser, Dennis Bastiaansen, L ten Hoopen, Pieter de Nijs, Gwen Dieleman, WA (Wietske) Ester, Susan van Rijen, Femke Truijens & Linda Dekker (2020) - The impact of COVID-19 on children and adolescents with autism spectrum disorder and their families
- Femke Truijens (2020) - When questionnaires shape answers. On “the data” as foundation of Evidence-Based Treatment
- Femke Truijens (2019) - How valid is our understanding of validity? Discussion on the practical use and limits of validity in psychological research and practice.
- Femke Truijens (2019) - How questionnaires shape answers. On validity and performativity of ‘the data’ in psychotherapeutic research.
Universiteit Gent
- Start date approval
- November 2023
- End date approval
- November 2026
- Place
- GENT, BELGIË
- Description
- Gastonderzoeker/Samenwerking EUR
- Femke Truijens (2022) - Trends in Guideline Development and Implementation of Psychotherapy in Mental Health Care Systems - Dr Felicitas Rost & Dr Femke Truijens
- Femke Truijens (2022) - Trends in guideline development and implementation of psychotherapy in mental health care systems.
- Femke Truijens (2022) - “In hindsight, I was more depressed than I thought”. Response shifts in psychotherapy research.
- Linda Dekker, Linde Hooijman, Ruth Van der Hallen, Anneke Louwerse, K (Kirsten) Visser, Dennis Bastiaansen, L ten Hoopen, Pieter de Nijs, Gwen Dieleman, WA (Wietske) Ester, Susan van Rijen & Femke Truijens (2022) - Care and informational needs of parents of children with ASD during the COVID-19 pandemic.
- Femke Truijens (2021) - ‘Numbers are words too’: Taking a qualitative stance on quantitative data collection and measurement validity in psychotherapy research
- Femke Truijens (2020) - How valid is our understanding of validity in psychotherapy research?
- Ruth Van der Hallen, Linde Hooijman, Anneke Louwerse, K (Kirsten) Visser, Dennis Bastiaansen, L ten Hoopen, Pieter de Nijs, Gwen Dieleman, WA (Wietske) Ester, Susan van Rijen, Femke Truijens & Linda Dekker (2020) - The impact of COVID-19 on children and adolescents with autism spectrum disorder and their families
- Femke Truijens (2020) - When questionnaires shape answers. On “the data” as foundation of Evidence-Based Treatment
- Femke Truijens (2019) - How valid is our understanding of validity? Discussion on the practical use and limits of validity in psychological research and practice.
- Femke Truijens (2019) - How questionnaires shape answers. On validity and performativity of ‘the data’ in psychotherapeutic research.
Kwalitatief Onderzoekscollectief GGZ
- Start date approval
- November 2023
- End date approval
- November 2026
- Place
- NEDERLAND
- Description
- Oprichter en voorzitter vereniging onderzoekersGGZ
- Femke Truijens (2022) - Trends in Guideline Development and Implementation of Psychotherapy in Mental Health Care Systems - Dr Felicitas Rost & Dr Femke Truijens
- Femke Truijens (2022) - Trends in guideline development and implementation of psychotherapy in mental health care systems.
- Femke Truijens (2022) - “In hindsight, I was more depressed than I thought”. Response shifts in psychotherapy research.
- Linda Dekker, Linde Hooijman, Ruth Van der Hallen, Anneke Louwerse, K (Kirsten) Visser, Dennis Bastiaansen, L ten Hoopen, Pieter de Nijs, Gwen Dieleman, WA (Wietske) Ester, Susan van Rijen & Femke Truijens (2022) - Care and informational needs of parents of children with ASD during the COVID-19 pandemic.
- Femke Truijens (2021) - ‘Numbers are words too’: Taking a qualitative stance on quantitative data collection and measurement validity in psychotherapy research
- Femke Truijens (2020) - How valid is our understanding of validity in psychotherapy research?
- Ruth Van der Hallen, Linde Hooijman, Anneke Louwerse, K (Kirsten) Visser, Dennis Bastiaansen, L ten Hoopen, Pieter de Nijs, Gwen Dieleman, WA (Wietske) Ester, Susan van Rijen, Femke Truijens & Linda Dekker (2020) - The impact of COVID-19 on children and adolescents with autism spectrum disorder and their families
- Femke Truijens (2020) - When questionnaires shape answers. On “the data” as foundation of Evidence-Based Treatment
- Femke Truijens (2019) - How valid is our understanding of validity? Discussion on the practical use and limits of validity in psychological research and practice.
- Femke Truijens (2019) - How questionnaires shape answers. On validity and performativity of ‘the data’ in psychotherapeutic research.
4.3C Severe Mental Illness and Recovery
- Year
- 2023
- Course Code
- FSWP4035K
Nederlandse Vereniging voor Psychotherapie
- Start date approval
- November 2023
- End date approval
- November 2026
- Place
- NEDERLAND
- Description
- Lid Wetenschapsraad/Onderzoeksfonds NVP
- Femke Truijens (2022) - Trends in Guideline Development and Implementation of Psychotherapy in Mental Health Care Systems - Dr Felicitas Rost & Dr Femke Truijens
- Femke Truijens (2022) - Trends in guideline development and implementation of psychotherapy in mental health care systems.
- Femke Truijens (2022) - “In hindsight, I was more depressed than I thought”. Response shifts in psychotherapy research.
- Linda Dekker, Linde Hooijman, Ruth Van der Hallen, Anneke Louwerse, K (Kirsten) Visser, Dennis Bastiaansen, L ten Hoopen, Pieter de Nijs, Gwen Dieleman, WA (Wietske) Ester, Susan van Rijen & Femke Truijens (2022) - Care and informational needs of parents of children with ASD during the COVID-19 pandemic.
- Femke Truijens (2021) - ‘Numbers are words too’: Taking a qualitative stance on quantitative data collection and measurement validity in psychotherapy research
- Femke Truijens (2020) - How valid is our understanding of validity in psychotherapy research?
- Ruth Van der Hallen, Linde Hooijman, Anneke Louwerse, K (Kirsten) Visser, Dennis Bastiaansen, L ten Hoopen, Pieter de Nijs, Gwen Dieleman, WA (Wietske) Ester, Susan van Rijen, Femke Truijens & Linda Dekker (2020) - The impact of COVID-19 on children and adolescents with autism spectrum disorder and their families
- Femke Truijens (2020) - When questionnaires shape answers. On “the data” as foundation of Evidence-Based Treatment
- Femke Truijens (2019) - How valid is our understanding of validity? Discussion on the practical use and limits of validity in psychological research and practice.
- Femke Truijens (2019) - How questionnaires shape answers. On validity and performativity of ‘the data’ in psychotherapeutic research.
Universiteit Gent
- Start date approval
- November 2023
- End date approval
- November 2026
- Place
- GENT, BELGIË
- Description
- Gastonderzoeker/Samenwerking EUR
- Femke Truijens (2022) - Trends in Guideline Development and Implementation of Psychotherapy in Mental Health Care Systems - Dr Felicitas Rost & Dr Femke Truijens
- Femke Truijens (2022) - Trends in guideline development and implementation of psychotherapy in mental health care systems.
- Femke Truijens (2022) - “In hindsight, I was more depressed than I thought”. Response shifts in psychotherapy research.
- Linda Dekker, Linde Hooijman, Ruth Van der Hallen, Anneke Louwerse, K (Kirsten) Visser, Dennis Bastiaansen, L ten Hoopen, Pieter de Nijs, Gwen Dieleman, WA (Wietske) Ester, Susan van Rijen & Femke Truijens (2022) - Care and informational needs of parents of children with ASD during the COVID-19 pandemic.
- Femke Truijens (2021) - ‘Numbers are words too’: Taking a qualitative stance on quantitative data collection and measurement validity in psychotherapy research
- Femke Truijens (2020) - How valid is our understanding of validity in psychotherapy research?
- Ruth Van der Hallen, Linde Hooijman, Anneke Louwerse, K (Kirsten) Visser, Dennis Bastiaansen, L ten Hoopen, Pieter de Nijs, Gwen Dieleman, WA (Wietske) Ester, Susan van Rijen, Femke Truijens & Linda Dekker (2020) - The impact of COVID-19 on children and adolescents with autism spectrum disorder and their families
- Femke Truijens (2020) - When questionnaires shape answers. On “the data” as foundation of Evidence-Based Treatment
- Femke Truijens (2019) - How valid is our understanding of validity? Discussion on the practical use and limits of validity in psychological research and practice.
- Femke Truijens (2019) - How questionnaires shape answers. On validity and performativity of ‘the data’ in psychotherapeutic research.
Kwalitatief Onderzoekscollectief GGZ
- Start date approval
- November 2023
- End date approval
- November 2026
- Place
- NEDERLAND
- Description
- Oprichter en voorzitter vereniging onderzoekersGGZ
- Femke Truijens (2022) - Trends in Guideline Development and Implementation of Psychotherapy in Mental Health Care Systems - Dr Felicitas Rost & Dr Femke Truijens
- Femke Truijens (2022) - Trends in guideline development and implementation of psychotherapy in mental health care systems.
- Femke Truijens (2022) - “In hindsight, I was more depressed than I thought”. Response shifts in psychotherapy research.
- Linda Dekker, Linde Hooijman, Ruth Van der Hallen, Anneke Louwerse, K (Kirsten) Visser, Dennis Bastiaansen, L ten Hoopen, Pieter de Nijs, Gwen Dieleman, WA (Wietske) Ester, Susan van Rijen & Femke Truijens (2022) - Care and informational needs of parents of children with ASD during the COVID-19 pandemic.
- Femke Truijens (2021) - ‘Numbers are words too’: Taking a qualitative stance on quantitative data collection and measurement validity in psychotherapy research
- Femke Truijens (2020) - How valid is our understanding of validity in psychotherapy research?
- Ruth Van der Hallen, Linde Hooijman, Anneke Louwerse, K (Kirsten) Visser, Dennis Bastiaansen, L ten Hoopen, Pieter de Nijs, Gwen Dieleman, WA (Wietske) Ester, Susan van Rijen, Femke Truijens & Linda Dekker (2020) - The impact of COVID-19 on children and adolescents with autism spectrum disorder and their families
- Femke Truijens (2020) - When questionnaires shape answers. On “the data” as foundation of Evidence-Based Treatment
- Femke Truijens (2019) - How valid is our understanding of validity? Discussion on the practical use and limits of validity in psychological research and practice.
- Femke Truijens (2019) - How questionnaires shape answers. On validity and performativity of ‘the data’ in psychotherapeutic research.
