Education & Training
2021, The Gottman Institute
Certificate, Level 3 Clinical Training, Gottman Method Couples Therapy:
Practicum Training
2021, The Gottman Institute
Certificate, Seven Principles for Making Marriage Work Leader Training
2020, Australian Institute of Professional Counsellors (AIPC)
Diploma of Counselling
2020, Counselling Tutor
Certificate, Online and Telephone Counselling Course (80 CE)
2020, The Gottman Institute
Certificate, Level 2 Clinical Training, Gottman Method Couples Therapy:
Assessment, Intervention, and Co-Morbidities
2019, The Gottman Institute
Certificate, Level 1 Clinical Training, Gottman Method Couples Therapy:
Bridging the Couple Chasm
2003 – 2006, Massey University, New Zealand
PhD (Psychology)
PhD thesis title: Attachment and Conflict in Close Relationships: The association of attachment with conflict resolution styles, conflict beliefs, communication accuracy and relationship satisfaction
This research focused on couples and incorporated observational questionnaire development and survey data (analysed in a qualitative and quantitative manner). In addition, an online survey confirmed key relationship variables from an individual perspective.
Received a full Massey University Doctoral Scholarship
Published two peer-reviewed manuscripts from my PhD:
Du Plessis, K., & Clarke, D. (2008). Couples’ helpful, unhelpful and ideal conflict resolution strategies: Secure and insecure attachment differences and similarities. Interpersona, 2(1), 65-88, https://dx.doi.org/10.5964/ijpr.v2i1.18
Du Plessis, K., Clarke, D., & Woolley, C.C. (2007). Secure attachment conceptualizations: The influence of general and specific relational models on conflict beliefs and conflict resolution styles. Interpersona, 1(1), 25-44, https://doi.org/10.5964/ijpr.v1i1.3
Graduation: April 2008
2002, Manukau Institute of Technology, Auckland
Certificate in Addictive Processes and completed the "Working with Groups” course
2000 – 2001, Massey University, New Zealand
MA (Psychology)
Degree completed with first class honours
Thesis: Conflict resolution styles and relationship satisfaction in couples
1996-1998, Potchefstroom University, South Africa (now North-West University)
BA (Psychology, English and Translation Studies)
Degree completed cum laude