Client version · RDFS-C
Completed by clients to report how often they experience moments of relational depth with their therapist over the course of therapy.
Download client scale · PDFMeasures · Translation resources
Resources for research
& practice.
Measures developed through Gina’s research, alongside practical resources for translating and culturally adapting psychological scales.
Therapeutic relationship
Relational Depth Frequency Scale.
The RDFS is a brief self-report measure of how frequently moments of profound connection and engagement occur in psychotherapy. Client and therapist versions capture each person’s perspective on the therapeutic relationship.
Therapist version · RDFS-T
Completed by therapists to report how often they experience moments of relational depth with a particular client over the course of therapy.
Download therapist scale · PDFDevelopment & validation
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., 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
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
Di Malta, G., She, Z., Raymond-Barker, B., & Cooper, M. (2023). Extended validation of the relational depth frequency scale: Retest reliability, divergent validity, criterion validity with psychotherapy satisfaction, and measurement invariance in UK‐ and US‐stratified samples. Journal of Clinical Psychology, 79(9), 2040–2052. https://doi.org/10.1002/jclp.23525
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/
Patient perspectives on measures
Patient-Perceived Helpfulness of Measures Scale.
The ppHMS asks patients how helpful they find a particular questionnaire or feedback form used in their psychological treatment. It can support research, service evaluation and conversations about which measures patients find useful.
The downloadable version contains five items, rated from strongly disagree to strongly agree.
Development & validation
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
Translation & cultural adaptation
Scale translation resources.
Gina’s guidelines and working template help translation teams document the source measure, translated wording, back-translation, decisions and validation. They can be used with questionnaires, inventories and other psychological measures.
Translation guidelines
A concise guide to conceptual equivalence, translation and review, testing, permissions, scoring and version control.
Download guidelines · WordTranslation template
An editable document with project details, source and translated text, back-translation, a decision log and a validation record.
Download template · WordResource enquiries
Using or translating a measure?
For questions about Gina’s measures, translations or related research:
gina.dimalta@open.ac.uk