After graduating from University College London in 1969 in Psychology, Duncan completed his PhD in 1973 with Hans Eysenck at the Institute of Psychiatry in London. He was a Lecturer in the Psychology Department at Queen's University Belfast before coming to the Social Sciences Department at 天堂视频 in 1977, retiring in 2013. Duncan is currently Emeritus Professor in Psychological Health.
Duncan has been Joint Editor (1995-2000) and Associate Editor (1993-1995, 2000-2001) of the British Journal of Medical Psychology and its successor Psychology and Psychotherapy (2001-2010) as well as Associate Editor of the Journal of Social and Personal Relationships (2004-2009). He has been on the Editorial Boards of seven other journals. Duncan was Chair of the Books and Special Projects Group of The British Psychological Society (1998-2001) as well as a member of the group (1995-1998). He has also been a member of the BPS Journals Committee (1995-2000).
Duncan's research interests and publications include such topics such as mental health, personality, personal relationships, organizational commitment, psychotherapy and counselling. He has authored or co-authored over 82 papers in peer-reviewed journals and over 36 first or revised editions of books.
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Howitt, D. & Cramer, D. (2020). Understanding Statistics in psychology with SPSS (8th ed.). Harlow: Prentice Hall.
- Howitt, D. & Cramer, D. (2020). Research methods in psychology (6th ed.). Harlow: Prentice Hall.
- Howitt, D. & Cramer, D. (2020). Metodologia della ricerca in psicologia. Milano-Torino: Pearson.
- Howitt, D. & Cramer, D. (2017). Introduction to SPSS in psychology (7th ed.). Harlow: Prentice Hall.
- Cramer, D. (2017). An introduction to quantitative research in counselling psychology. In Murphy, D. (Ed.), Counselling Psychology: A textbook for study and practice (pp. 408-424). Leicester: British Psychological Society and Chichester: John Wiley and Sons.
- Murphy, D. & Cramer, D. (2014). Mutuality of Rogers’ therapeutic conditions and outcome in the first three therapy sessions. Psychotherapy Research, 24(6), 651-661.
- Hojjat, M., & Cramer, D. (2013). (Eds.). Positive psychology of love. New York: Oxford University Press.
- Cramer, D., & Jowett, S. (2010). Perceived empathy, accurate empathy and relationship satisfaction in heterosexual couples. Journal of Social and Personal Relationships, 27(3), 327-349.