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  1. Kroll, Chantal [Author]; Keller, Roger [Author]; Scholz, Urte [Author] ; Perren, Sonja [Other]

    Evaluating the decisional balance construct of the Transtheoretical Model : are two dimensions of pros and cons really enough?

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    Konstanz: Bibliothek der Universität Konstanz, 2011

  2. Radtke, Theda [Author]; Scholz, Urte [Author]; Keller, Roger [Author] ; Perren, Sonja [Other]; Hornung, Rainer [Other]

    German-Language Version of the Compensatory Health Belief Scale : Assessing Its Psychometric Properties

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    Konstanz: Bibliothek der Universität Konstanz, 2013

  3. Perren, Sonja [Author]; Gutzwiller-Helfenfinger, Eveline [Author]

    Cyberbullying and traditional bullying in adolescence : Differential roles of moral disengagement, moral emotions, and moral values

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    Konstanz: Bibliothek der Universität Konstanz, 2012

  4. Braun, Melanie [Author]; Scholz, Urte [Author]; Reinhold, Barbara Bailey [Author] ; Perren, Sonja [Other]; Hornung, Rainer [Other]; Martin, Mike [Other]

    Dementia caregiving in spousal relationships : A dyadic perspective

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    Konstanz: Bibliothek der Universität Konstanz, 2009

  5. Hart, Lara Melissa [Author]; Keller, Roger [Author]; Perren, Sonja [Author]

    Spielzeugfreier Kindergarten : Differentielle Effekte eines Präventionsprojektes zur Stärkung der Lebenskompetenzen von Kindergartenkindern

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    Konstanz: KOPS Universität Konstanz, 2024

  6. Perren, Sonja [Author]; Reyhing, Yvonne [Author]; Lieb, Johanna [Author]

    Qualitätsentwicklung in der Kindertagesbetreuung durch eine web-mediierte Weiterbildung zur unterstützenden Fachkraft-Kind-Interaktion in heterogenen Kleinkindgruppen (iQuaKi) : Schlussbericht

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    Konstanz: KOPS Universität Konstanz, 2023

  7. Perren, Sonja [Author]; Reyhing, Yvonne [Author]; Lieb, Johanna [Author] ; Universität Konstanz Arbeitsgruppe Entwicklung und Bildung in der frühen Kindheit, Pädagogische Hochschule Thurgau

    Qualitätsentwicklung in der Kindertagesbetreuung durch eine web-mediierte Weiterbildung zur unterstützenden Fachkraft-Kind-Interaktion in heterogenen Kleinkindgruppen (iQuaKi) : Schlussbericht

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    Konstanz: Universität Konstanz, Juni 2023

  8. Jaggy, Ann-Kathrin [Author]; Perren, Sonja [Author]; Sticca, Fabio [Author]

    Assessing Preschool Children's Social Pretend Play Competence : An Empirical Comparison of Three Different Assessment Methods

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    Konstanz: KOPS Universität Konstanz, 2020

  9. Burke, Taniesha [Author]; Sticca, Fabio [Author]; Perren, Sonja [Author]

    Everything’s Gonna be Alright! : The Longitudinal Interplay among Social Support, Peer Victimization, and Depressive Symptoms

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    Konstanz: Bibliothek der Universität Konstanz, 2017