dr. (Femke) FL Truijens

dr. (Femke) FL Truijens
Assistant professor Erasmus School of Social and Behavioural Sciences Clinical Psychology
Burg. Oudlaan 50, Rotterdam
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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)


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


  • Linda Dekker, Femke Truijens, Susan van Rijen & Ruth Van der Hallen (25 augustus 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) - 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

4.1P Couples therapy and sexuality

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4.2 Research methods in behavior change

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4.3C Severe Mental Illness and Recovery

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