Education & Training
2021, The Gottman Institute
Certificate, Level 3 Clinical Training, Gottman Method Couples Therapy:
Practicum Training
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2021, The Gottman Institute
Certificate, Seven Principles for Making Marriage Work Leader Training
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2020, Australian Institute of Professional Counsellors (AIPC)
Diploma of Counselling
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2020, Counselling Tutor
Certificate, Online and Telephone Counselling Course (80 CE)
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2020, The Gottman Institute
Certificate, Level 2 Clinical Training, Gottman Method Couples Therapy:
Assessment, Intervention, and Co-Morbidities
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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
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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:
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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
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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
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2002, Manukau Institute of Technology, Auckland
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Certificate in Addictive Processes and completed the "Working with Groups” course
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2000 – 2001, Massey University, New Zealand
MA (Psychology)
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Degree completed with first class honours
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Thesis: Conflict resolution styles and relationship satisfaction in couples
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1996-1998, Potchefstroom University, South Africa (now North-West University)
BA (Psychology, English and Translation Studies)
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Degree completed cum laude
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