Details

Dr. Magdalena Siegel, BSc MSc

T: +43-1-4277-47285

magdalena.siegel@univie.ac.at

Winter term 2025

200179 SE Master's Thesis Seminar (A)

Randall, A. K., Lannutti, P. J., Samrock, S., Gandhi, Y., Totenhagen, C. J., Zemp, M., Siegel, M., & Otermans, P. (2021). Preregistration: SGM-CC Phase 1: Lived experiences of SGM individuals.

Siegel, M., Eder, J., Gittler, G., Voracek, M., Wicherts, J. M., & Pietschnig, J. (2021). Prevalence and predictors of publication bias in Psychological Science: A preregistered meta-meta-analysis. Paper presented at The 32nd International Congress of Psychology, Prag, Czech Republic.

Siegel, M., Eder, J., Wicherts, J. M., & Pietschnig, J. (2021). Time trends and publication bias: Individual differences vs. I/O Psychology. Paper presented at 16th Conference on Personality and Psychological Assessment (DPPD), Ulm, Germany.

Pietschnig, J., Eder, J., Gittler, G., Voracek, M., Wicherts, J. M., & Siegel, M. (2021). Weakening effects over time: A meta-meta-analysis of the decline effect. Paper presented at The 32nd International Congress of Psychology, Prag, Czech Republic.

Pietschnig, J., Pellegrini, M., Eder, J., & Siegel, M. (2020). After all, it is an outdoor sport: Meta-analytic evidence for negative associations between wind compensation points and round scores in ski jumping competitions. PLoS ONE, 15(8), Article e0238101. https://doi.org/10.1371/journal.pone.0238101

Siegel, M., Nöstlinger, C., Dürrauer, F., Kirchner, S., Niederkrotenthaler, T., & Zemp, M. (2020, Jun 29). Preregistration: The mental health of sexual and gender minority youth in Austria: A systematic scoping review of the published literature. https://osf.io/vdgy2/

Siegel, M., Assenmacher, C., Meuwly, N., & Zemp, M. (2020, May 10). Preregistration: The legal vulnerability model for same-sex parent families: A mixed methods systematic review and theoretical integration. https://osf.io/qs6hp/

Siegel, M., Adlmann, E. M., Gittler, G., & Pietschnig, J. (2020). Bite the stress away? Nail biting and smoking predict maladaptive stress coping strategies. Journal of Individual Differences, 41(1), 53-60. https://doi.org/10.1027/1614-0001/a000303

Pietschnig, J., Siegel, M., Eder, J., & Gittler, G. (2019). Effect declines are systematic, strong, and ubiquitous: A meta-meta-analysis of the decline effect in intelligence research. Frontiers in Psychology, 10, Article 2874. https://doi.org/10.3389/fpsyg.2019.02874

Alfers, T., Gittler, G., Siegel, M., & Pietschnig, J. (2018). Evidenzbasierte Studienberatung: eine Alternative zu reduktionistischen Ansätzen in RIASEC-basierten Beratungsinstrumenten. Paper presented at 13. Tagung der Österreichischen Gesellschaft für Psychologie (ÖGP) 2018, Linz, Austria.

Pietschnig, J., Gittler, G., Siegel, M., & Voracek, M. (2018). Meta-Meta-Analyse über Studien in Intelligence: Evidenz für Publikationsbias und den Decline Effekt. Paper presented at 14. Tagung der Fachgruppe Differentielle Psychologie, Persönlichkeitspsychologie und Psychologische Diagnostik der Deutschen Gesellschaft für Psychologie, München, Germany.

Siegel, M., Alfers, T., Pietschnig, J., & Gittler, G. (2018). Zur faktoriellen Ausdifferenzierung der RIASEC-Binnenstruktur bei Jugendlichen im Studienberatungsinstrument Studien-Navi. Paper presented at 13. Tagung der Österreichischen Gesellschaft für Psychologie (ÖGP) 2018, Linz, Austria.

Pietschnig, J., Gittler, G., Siegel, M., & Voracek, M. (2017). Meta-Meta-Analyse über Studien in Intelligence: Evidenz für Publikationsbasis und den Decline Effekt. Paper presented at 14. Arbeitstagung der Fachgruppe Differenzielle Psychologie, Persönlichkeitspsychologie und Psychologische Diagnostik, München, Germany.

Pietschnig, J., Gittler, G., Siegel, M., & Voracek, M. (2017). Meta-meta-analysis of studies in Intelligence: Investigating prevalence of publication bias and the decline effect. Paper presented at Eighteenth Annual Conference of the International Society of Intelligence Research , Montreal, Canada.

Siegel, M., Reigbert, K., Nöstlinger, C., & König, D. (2017). The impact of parental support on mental health outcomes in young sexual minority women and the mediating role of sexuality-specific acceptance concerns. Paper presented at 21st ILGA Europe Annual Conference, Warschau, Poland.

Siegel, M., Adlmann, E. M., Gittler, G., & Pietschnig, J. (2016). Prädiktoren adaptiver und maladaptiver Stressverarbeitungsstrategien: Nägelbeißen, Rauchen und die Big Five Persönlichkeitstraits.. Paper presented at 50. Kongress der Deutschen Gesellschaft für Psychologie, Leipzig, Germany.

The Decline Effect in Psychological Science: Patterns, Predictors, and Implications for Research Practices

Steininger, B. (Speaker), Siegel, M. (Contributor), Tran, U. (Contributor), Wicherts, J. M. (Contributor) & Pietschnig, J. (Contributor)

23 Sept 2025

Activity: Talks and presentations › Talk or oral contribution › Science to Science

Decline effects in the empirical sciences: Meta-meta-analytic evidence from (Educational) Psychology

Steininger, B. (Speaker), Siegel, M. (Contributor), Tran, U. (Contributor), Bühler, R. (Contributor), Eder, J. S. N. (Contributor), Schock, L. S. (Contributor), Wicherts, J. M. (Contributor) & Pietschnig, J. (Contributor)

26 Aug 2025

Activity: Talks and presentations › Talk or oral contribution › Science to Science

Introducing the Rainbow Austrian Longitudinal Family (RALF) study: A project presentation

Geidel, B. (Speaker), Siegel, M. (Contributor) & Zemp, M. (Contributor)

2 Aug 2025

Activity: Talks and presentations › Talk or oral contribution › Science to Science

Structural Stigma and Minority Stress as Predictors of Relationship Quality in a Global Sample of Sexual Minority and Gender Diverse Populations: An intersectionality-informed, machine learning-based analysis

Siegel, M. (Speaker), Randall, A. K. (Contributor), Lannutti, P. J. (Contributor), Steyrl, D. (Contributor), Boiger, M. (Contributor), Chiarolanza, C. (Contributor), Fischer, M. (Contributor), Galdiolo, S. (Contributor), Kanth, B. (Contributor), Kittieerasack, P. (Contributor), Londero-Santos, A. (Contributor), Meuwly, N. (Contributor), Natividade, J. C. (Contributor), Üçok, S. B. Ö. (Contributor), Relvas, A. P. (Contributor), Rumondor, P. C. (Contributor), Siau, C. S. (Contributor) & Zemp, M. (Contributor)

1 Aug 2025

Activity: Talks and presentations › Talk or oral contribution › Science to Science

Transparenz, Qualität und statistische Konsistenz von meta-analytischen Systematic Reviews in der Klinischen Kinder- und Jugendpsychologie (2022-2024): Ein Meta-Review

Siegel, M. (Speaker), Fanninger, S. (Contributor), Riedel, J. (Contributor) & Zemp, M. (Contributor)

10 Apr 2025

Activity: Talks and presentations › Talk or oral contribution › Science to Science

Wiederaufnahmen in der stationären Kinder- und Jugendpsychiatrie: Ein Scoping Review zur Rolle der Familie

Friedrich, A.-S. E. (Speaker), Busch, J. (Contributor), Siegel, M. (Contributor), Bodenmann, G. (Contributor) & Zemp, M. (Contributor)

10 Apr 2025

Activity: Talks and presentations › Talk or oral contribution › Science to Public

Partizipative Forschung mit Regenbogenfamilien am Beispiel der Rainbow Longitudinal Austrian Family (RALF) Studie

Geidel, B. (Speaker), Siegel, M. (Contributor) & Zemp, M. (Contributor)

9 Apr 2025

Activity: Talks and presentations › Talk or oral contribution › Science to Science

Community collaboration - Participatory research with LGBTQ+ parent families using the example of the Rainbow Longitudinal Austrian Family (RALF) study

Geidel, B. (Speaker), Siegel, M. (Contributor) & Zemp, M. (Contributor)

25 Feb 2025

Activity: Talks and presentations › Talk or oral contribution › Science to Science

The systematic nature of the decline effect: Evidence from 278 meta-analyses in psychological research

Steininger, B. (Speaker), Siegel, M. (Contributor), Tran, U. (Speaker), Wicherts, J. M. (Contributor) & Pietschnig, J. (Contributor)

2025

Activity: Talks and presentations › Talk or oral contribution › Science to Science

Associations between workplace LGB+ disclosure and discrimination, organizational LGB+ climate, job satisfaction, and mental health: A meta-analysis

Wahl, I. (Speaker), Stibor, R. (Speaker), Einwiller, S. (Speaker), Hagelstein, J. P. W. (Speaker) & Siegel, M. (Speaker)

20 Jun 2024 → 24 Jun 2024

Activity: Talks and presentations › Talk or oral contribution › Science to Science

Die Modellierung von Intersektionalität in LGBTQ-Paaren und -Familien mittels Machine Learning-basierten Ansätzen: Evidenz aus 28 europäischen Ländern

Siegel, M. (Speaker), Steyrl, D. (Contributor), Goldberg, A. E. (Contributor), Nicholson, A. (Contributor), Hosseini-Kamkar, N. (Contributor) & Zemp, M. (Contributor)

15 Jun 2024

Activity: Talks and presentations › Talk or oral contribution › Science to Science

Zurück zuhause: Systematisches Scoping Review zu familiären Faktoren stationär-psychiatrischer Wiederaufnahmen bei Kindern und Jugendlichen

Friedrich, A.-S. E. (Speaker), Busch, J. (Contributor), Siegel, M. (Speaker), Bodenmann, G. (Contributor) & Zemp, M. (Contributor)

14 Jun 2024

Activity: Talks and presentations › Talk or oral contribution › Science to Science

Associations between workplace LGB+ disclosure and discrimination, organizational LGB+ climate, job satisfaction, and mental health: A meta-analysis

Wahl, I. (Speaker), Stibor, R. (Speaker), Einwiller, S. (Speaker), Hagelstein, J. P. W. (Speaker) & Siegel, M. (Speaker)

26 Mar 2024 → 27 Apr 2024

Activity: Talks and presentations › Talk or oral contribution › Science to Science

Misestimations and decline effects in the psychological literature are driven by inflated exploratory effects: A meta-meta-analysis

Steininger, B. (Speaker), Siegel, M. (Contributor), Bühler, R. (Contributor), Eder, J. S. N. (Contributor), Schock, L. S. (Contributor), Wicherts, J. M. (Contributor) & Pietschnig, J. (Contributor)

2024

Activity: Talks and presentations › Talk or oral contribution › Science to Science

What is published about employee communication regarding LGBT+: A scoping review of quantitative research

Wahl, I. (Speaker), Siegel, M. (Speaker) & Einwiller, S. (Speaker)

20 Sept 2023 → 23 Sept 2023

Activity: Talks and presentations › Talk or oral contribution › Science to Science

Kindliche Gewissensbisse: Eine Meta-Analyse zur Eltern-Kind-Beziehung und kindlichen Scham- und Schuldgefühlen

Van Eickels, R. L. (Speaker), Kühböck, S. (Contributor), Siegel, M. (Contributor) & Zemp, M. (Contributor)

12 May 2023

Activity: Talks and presentations › Talk or oral contribution › Science to Science

Das Risiko- und Resilienzmodell für Familien mit LGBTQ+ Eltern: Systematische Evidenzsynthese, theoretische Integration, Praxisrelevanz

Siegel, M. (Speaker), Legler, M. (Contributor), Neziraj, F. (Contributor), Goldberg, A. E. (Contributor) & Zemp, M. (Contributor)

11 May 2023

Activity: Talks and presentations › Talk or oral contribution › Science to Science

What is known about employee communication regarding LGBT+: A scoping review.

Wahl, I. (Speaker), Siegel, M. (Speaker) & Einwiller, S. (Speaker)

3 Apr 2023 → 4 Apr 2023

Activity: Talks and presentations › Talk or oral contribution › Science to Science

Meta-meta-analytical evidence reveals dissemination biases as main drivers of cross-temporal effect declines in intelligence research and beyond

Pietschnig, J. (Speaker), Eder, J. S. N. (Contributor), Steininger, B. (Contributor), Schock, L. S. (Contributor), Bühler, R. (Contributor), Wicherts, J. M. (Contributor) & Siegel, M. (Contributor)

2023

Activity: Talks and presentations › Talk or oral contribution › Science to Science

Love Makes a Family, Law Shapes a Family: Legal Vulnerability as a Systemic Stressor for Same-Gender Parent Families

Siegel, M. (Speaker), Assenmacher, C. (Contributor), Meuwly, N. (Contributor) & Zemp, M. (Contributor)

12 Oct 2022

Activity: Talks and presentations › Talk or oral contribution › Science to Science

Die Konzeptualisierung von rechtlicher Vulnerabilität in Familien mit gleichgeschlechtlichen Eltern: Ein mixed methods Systematic Review

Siegel, M. (Speaker), Assenmacher, C. (Contributor), Meuwly, N. (Contributor) & Zemp, M. (Contributor)

6 Sept 2022

Activity: Talks and presentations › Talk or oral contribution › Science to Science

More egalitarian societies reveal larger intelligence heritabilities: A meta-analysis of twin-studies

Pietschnig, J. (Speaker), Traub, J. (Speaker), Siegel, M. (Speaker), Zeilinger, E. (Speaker) & Pellegrini, M. (Speaker)

5 Sept 2022

Activity: Talks and presentations › Talk or oral contribution › Science to Science

The lightning plot: A meta-meta-analytical tool for illustrating cross-temporal effect change trajectories

Pietschnig, J. (Speaker), Eder, J. S. N. (Speaker) & Siegel, M. (Speaker)

5 Sept 2022

Activity: Talks and presentations › Talk or oral contribution › Science to Science

It’s not getting any better: Systematic, strong and overproportional effect declines over time are not confined to intelligence research

Pietschnig, J. (Speaker), Eder, J. (Speaker), Gittler, G. (Speaker), Voracek, M. (Speaker), Wicherts, J. M. (Speaker) & Siegel, M. (Speaker)

16 Sept 2019 → 18 Sept 2019

Activity: Talks and presentations › Talk or oral contribution › Science to Science

Publication bias in Individual Differences research is underestimated: A meta-meta-analysis

Siegel, M. (Speaker), Eder, J. (Speaker), Gittler, G. (Speaker), Voracek, M. (Speaker), Wicherts, J. M. (Speaker) & Pietschnig, J. (Speaker)

16 Sept 2019 → 18 Sept 2019

Activity: Talks and presentations › Talk or oral contribution › Science to Science

More than meets the eye: The prevalence of publication bias in Industrial and Organizational Psychology

Siegel, M. (Speaker), Eder, J. (Speaker), Gittler, G. (Speaker), Voracek, M. (Speaker), Wicherts, J. M. (Speaker) & Pietschnig, J. (Speaker)

7 Mar 2019

Activity: Talks and presentations › Talk or oral contribution › Science to Science

Systematic, strong, and overproportional effect declines over time: A meta-meta-analysis of conceptually heterogeneous quantitative research syntheses

Pietschnig, J. (Speaker), Eder, J. (Speaker), Gittler, G. (Speaker), Voracek, M. (Speaker), Wicherts, J. M. (Speaker) & Siegel, M. (Speaker)

7 Mar 2019 → 9 Mar 2019

Activity: Talks and presentations › Talk or oral contribution › Science to Science

). It’s not getting any better: Systematic, strong, and overproportional effect declines over time are not confined to intelligence research

Pietschnig, J. (Speaker), Eder, J. (Contributor), Gittler, G. (Contributor), Voracek, M. (Contributor), Wicherts, J. M. (Contributor) & Siegel, M. (Contributor)

2019

Activity: Talks and presentations › Talk or oral contribution › Science to Science

Publication bias in individual differences research is underestimated: A meta-meta-analysis

Siegel, M. (Speaker), Eder, J. S. N. (Contributor), Gittler, G. (Contributor), Voracek, M. (Contributor), Wicherts, J. M. (Speaker) & Pietschnig, J. (Speaker)

2019

Activity: Talks and presentations › Talk or oral contribution › Science to Science

Department of Clinical and Health Psychology

Liebiggasse 5
1010 Wien

T: +43-1-4277-47285

magdalena.siegel@univie.ac.at