Di Malta, G., Vos, J., Bond, J., Van Rijn, B., & Cooper, M. (2026). Relational depth as predictor of mental health outcomes in psychotherapy: Random intercept cross-lagged analyses. Psychotherapy Research, 36(6), 1098–1109. https://doi.org/10.1080/10503307.2025.2551073
Academic work
Publications.
Journal articles, books, chapters and research outputs by Gina and her collaborators.
Publications & research outputs · APA 7
A body of work on therapeutic change.
Books, chapters, articles, conference contributions, thesis and research resources. Explore the Open University profile.
Rost, F., Moller, N., Frances, T., McFaul, C., Di Malta, G., & Ness, H. (Eds.). (2025). Counselling skills and knowledge for SCoPEd B: Diversity, self-awareness, assessment and research. SAGE College Publishing. https://oro.open.ac.uk/105788/
Di Malta, G., Cooper, M., Vos, J., & Van Der Veer, K. (2025). An application of the three-step test-interview (TSTI) in the validation of the relational depth frequency scale. Journal of Humanistic Psychology, 65(3), 574–592. https://doi.org/10.1177/0022167820962626
Jones, K., Folliard, K., Di Malta, G., Oates, J., Gilbert, L., & Harrison, V. (2025). Risk factors associated with postpartum anxiety in Australia, Europe, and North America: A systematic review and narrative synthesis. Journal of Affective Disorders, 373, 478–494. https://doi.org/10.1016/j.jad.2024.12.043
Di Malta, G., Cooper, M., Oddli, H., Swift, J., & Knox, S. (2025). Clients' preferences for their therapists' relational styles in psychotherapy: A consensual qualitative research study. Counselling and Psychotherapy Research, 25(1), Article e12887. https://doi.org/10.1002/capr.12887
Grupa, M., Zarzycka, B., Tomaka, K., & Di Malta, G. (2025). Relational depth, spiritual growth, and authenticity in spiritual direction: A dyadic perspective. Psychology of Religion and Spirituality, 17(3), 261–269. https://doi.org/10.1037/rel0000568
She, Z., Cooper, M., & Di Malta, G. (2025). A comparison of patients’ preferences for psychotherapy with psychotherapists’ preferences for delivering psychotherapy in China. Psychotherapy, 62(4), 486–494. https://doi.org/10.1037/pst0000600
Di Malta, G. (2025). Foundations of psychological assessment. In F. Rost, N. Moller, T. Frances, C. McFaul, G. Di Malta, & H. Ness (Eds.), Counselling skills and knowledge for SCoPEd B: Diversity, self-awareness, assessment and research. SAGE Publications Ltd. https://in.sagepub.com/en-in/ind/counselling-skills-and-knowledge-for-scoped-b/book290573#chapter9
Di Malta, G., Carlyle, J. A., & Evans, C. (2025). Using outcome measures to inform psychological assessment. In F. Rost, N. Moller, T. Frances, C. McFaul, G. Di Malta, & H. Ness (Eds.), Counselling skills and knowledge for SCoPEd B: Diversity, self-awareness, assessment and research. SAGE Publications Ltd. https://in.sagepub.com/en-in/ind/counselling-skills-and-knowledge-for-scoped-b/book290573#chapter12
Di Malta, G., Cooper, M., Gololob, Y., O'Hara, M., & Stephen, S. (Eds.). (2024). The handbook of person-centred psychotherapy and counselling (3rd ed.). Bloomsbury Academic. https://oro.open.ac.uk/97528/
Di Malta, G., Cooper, M., Knox, R., & Cox, S. (2024). The relational approach to person-centred therapy. In M. Cooper (Ed.), The tribes of the person-centred nation (3rd edition): An introduction to the world of person-centred therapies (pp. 58–81). PCCS books. https://oro.open.ac.uk/97534/
Di Malta, G., Cooper, M., Gololob, Y., O'Hara, M., & Stephen, S. (2024). The person-centred approach today and tomorrow: Seeds of a peaceful revolution. In G. Di Malta, M. Cooper, Y. Gololob, M. O'Hara, & S. Stephen (Eds.), The handbook of person-centred psychotherapy and counselling (3rd ed.) (pp. 1–16). Bloomsbury Academic. https://oro.open.ac.uk/97529/
Freire, E., & Di Malta, G. (2024). Empathy. In G. Di Malta, M. Cooper, Y. Gololob, M. O'Hara, & S. Stephen (Eds.), The handbook of person-centred psychotherapy and counselling (3rd ed.). Bloomsbury Academic. https://oro.open.ac.uk/97531/
Di Malta, G., Anderson, R., & Cooper, M. (2024). Relational depth. In G. Di Malta, M. Cooper, Y. Gololob, M. O'Hara, & S. Stephen (Eds.), The handbook of person-centred psychotherapy and counselling (3rd ed.) (pp. 239–251). Bloomsbury Academic. https://oro.open.ac.uk/97533/
Di Malta, G., Cooper, M., Bond, J., Raymond-Barker, B., Oza, M., & Pauli, R. (2024). The patient-perceived helpfulness of measures scale: Development and validation of a scale to assess the helpfulness of using measures in psychological treatment. Assessment, 31(5), 994–1010. https://doi.org/10.1177/10731911231195837
Di Malta, G., Bond, J., Raymond-Barker, B., Moller, N., & Cooper, M. (2024). The impact of relational depth on subjective well-being in close relationships in the community. Journal of Humanistic Psychology. Advance online publication. https://doi.org/10.1177/00221678241237290
Řiháček, T., Cooper, M., Cígler, H., She, Z., Di Malta, G., & Norcross, J. (2024). The Cooper–Norcross inventory of preferences: Measurement invariance across international datasets and languages. Psychotherapy Research, 34(6), 804–816. https://doi.org/10.1080/10503307.2023.2255371
Jones, K., Folliard, K., Di Malta, G., Oates, J., Gilbert, L., & Harrison, V. (2024). Risk factors associated with postpartum anxiety in Australia, Europe, and North America: A systematic review and narrative synthesis [conference poster] [Conference presentation]. ESRC Grand Union Doctoral Training Partnership Annual Conference 2024. https://oro.open.ac.uk/98011/
Cooper, M., & Di Malta, G. (2024). Person-centered theory in psychotherapy. In F. T. L. Leong, J. L. Callahan, J. Zimmerman, M. J. Constantino, & C. F. Eubanks (Eds.), APA handbook of psychotherapy: Theory-driven practice and disorder-driven practice (pp. 71–90). American Psychological Association. https://doi.org/10.1037/0000353-005
She, Z., Xi, J., Cooper, M., Norcross, J. C., & Di Malta, G. (2023). Validation of the Cooper–Norcross inventory of preferences (C-NIP) in Chinese lay clients and mental health professionals: Factor structure, measurement invariance, and scale differences. Journal of Counseling Psychology, 70(4), 436–447. https://doi.org/10.1037/cou0000661
Cooper, M., Di Malta, G., Knox, S., Oddli, H., & Swift, J. (2023). Patient perspectives on working with preferences in psychotherapy: A consensual qualitative research study. Psychotherapy Research, 33(8), 1117–1131. https://doi.org/10.1080/10503307.2022.2161967
Di Malta, G., She, Z., Raymond-Barker, B., & Cooper, M. (2023). Extended validation of the relational depth frequency scale: Retest reliability, divergent and criterion validity, and measurement invariance in UK‐ and US‐stratified samples. Journal of Clinical Psychology, 79(9), 2040–2052. https://doi.org/10.1002/jclp.23525
Renedo Illarregi, E., Alexiou, K., Di Malta, G., & Zamenopoulos, T. (2023). Is designing therapeutic? A case study exploring the experience of co-design and psychosis. Psychosis, 15(3), 277–291. https://doi.org/10.1080/17522439.2022.2052450
Pacini, A., Stickland, A., Iniguez, K., & Di Malta, G. (2023). Implementation of home practice support strategies for older adults attending an online mindfulness based cognitive therapy course: An adaptive intervention protocol [Conference presentation]. Proceedings of the 5th UK Implementation Science Research Conference. https://oro.open.ac.uk/89648/
Di Malta, G., Bond, J., Conroy, D., Smith, K., & Moller, N. (2022). Distance education students’ mental health, connectedness and academic performance during COVID-19: A mixed-methods study. Distance Education, 43(1), 97–118. https://doi.org/10.1080/01587919.2022.2029352
Zarzycka, B., Jankowski, T., Szostek, D., Di Malta, G., & Cooper, M. (2022). Relational depth from the perspective of the psychotherapy dyad: Psychometric properties of the relational depth frequency scale. Psychotherapy Research, 32(7), 910–921. https://doi.org/10.1080/10503307.2022.2038803
Sims, M., & Di Malta, G. (2021). The humanistic approach. In N. Moller, A. Vossler, D. Jones, & D. Kaposi (Eds.), Understanding mental health and counselling. SAGE. https://oro.open.ac.uk/87583/
Moller, N., & Di Malta, G. (2021). Understanding sadness and worry. In N. Moller, A. Vossler, D. Jones, & D. Kaposi (Eds.), Understanding mental health and counselling (pp. 129–158). Sage Publishing. https://oro.open.ac.uk/87584/
Farr, J., Di Malta, G., & Cooper, M. (2020). Pilot randomised controlled trial of counselling in a community mental health setting: Pitfalls and learnings. Counselling and Psychotherapy Research, 20(1), 3–8. https://doi.org/10.1002/capr.12262
Di Malta, G., Evans, C., & Cooper, M. (2020). Development and validation of the relational depth frequency scale. Psychotherapy Research, 30(2), 213–227. https://doi.org/10.1080/10503307.2019.1585590
Di Malta, G., Oddli, H. W., & Cooper, M. (2019). From intention to action: A mixed methods study of clients' experiences of goal-oriented practices. Journal of Clinical Psychology, 75(10), 1770–1789. https://doi.org/10.1002/jclp.22821
Di Malta, G. (2019). Relational Depth Frequency Scale [Measurement instrument]. https://www.researchgate.net/publication/331876602_Relational_Depth_Frequency_Scale
Di Malta, G. (2017). The development and validation of the relational depth frequency scale [Doctoral thesis, University of Roehampton]. Open Research Online. https://oro.open.ac.uk/92042/
Wright, N. D., Bahrami, B., Johnson, E., Di Malta, G., Rees, G., Frith, C. D., & Dolan, R. J. (2012). Testosterone disrupts human collaboration by increasing egocentric choices. Proceedings of the Royal Society B: Biological Sciences, 279(1736), 2275–2280. https://doi.org/10.1098/rspb.2011.2523
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