published books & tests
11. Brown, G. P., & Clark, D. A. (2015). Cognitive therapy assessment, diagnosis and case formulation. New York: Guilford Press.
10. Clark, D. A. (2014). The Mood Repair Toolkit: Proven Strategies to Prevent the Blues from Turning into Depression. New York: Guilford Press. [Translations: Japanese]
9. Clark, D. A. & Beck, A.T. (2012). The worry and anxiety workbook: The cognitive behavioral solution. New York: Guilford Press. [Translations: Japanese, Spanish, Portuguese, German, Hebrew]
8. Clark, D. A. & Beck, A. T. (2010). Cognitive therapy for anxiety disorders; Science and practice. New York: Guilford Press. [Translations: Japanese, Portuguese, Romanian, Hebrew]
7. Purdon, C. & Clark, D. A. (2005). Overcoming Obsessive Thoughts: Free Your Mind from OCD. New Harbinger Press, Oakland, CA. [Translation: Roman]
6. Clark, D. A. (2005). Intrusive thoughts in clinical disorders: Theory, Research & Treatment. New York: Guilford Press. [Translated into Japanese by Yanno, Y., Sugiura, Y., Kobori, O., Yamazaki, S., & Takase, C. Toyoko: Seiwa Shoten Publishers, 2006.]
5. Clark, D. A. (2004).Cognitive behaviorial therapy for OCD. New York: Guilford Press.
4. Reinecke, M. A., & Clark, D. A. (2004). Cognitive therapy across the lifespan: Theory, Research and Practice. Cambridge, UK: Cambridge University Press.
[Translated into Polish by Kubinscy, O.W., & Giczela, J. Psychoterapia poznawcza: w teorii I praktyce. Gdansk, Poland: Gdanskie Wydawnictwo Psychologiczne, 2005.]
3. Clark, D. A., & Beck, A. T. (2002). Clark-Beck Obsessive Compulsive Inventory. San Antonio, TX: The Psychological Corporation.
2. Clark, D. A., & Beck, A. T. (2002). Manual for the Clark-Beck Obsessive Compulsive Inventory. San Antonio, TX: The Psychological Corporation.
1. Clark, D. A. & Beck, A. T. (with Alford, B.) (1999). Scientific Foundations of Cognitive Theory and Therapy of Depression. New York: John Wiley & Sons. [Translation: Italian.]
journal articles (refereed)
90. Kazantzis, N., Clark, D. A., & Petrik, A. M. (revise & resubmit). How to succeed at homework: Using case formulation to enhance client ‘buy-in’. Psychotherapy.
89. McHale, N., Clark, D. A., & Tremante, L. (revise & resubmit). Does Optimism Moderate Mood Repair? A Daily Diary Study.Motivation and Emotion.
88. Talbot, F., Clark, D. A., et al. (accepted). “Gatekeepers” perspectives on treatment access for anxiety and depression: A survey of New Brunswick family physicians. Canadian Psychologist.
87. Clark, D. A. & Radomsky, A. S. (accepted). Introduction. A Global perspective on unwanted intrusive thoughts. Journal of Obsessive Compulsive and Related Disorders.
86. Moulding, R., Coles, M. E., Abramowitz, J. S., Alcolado, G. M., Alonso, P., Belloch, A., Bouvard, M., Clark, D. A., ; Doron, G.,et al. (accepted). Part 2. Do we all dislike intrusive thoughts for the same reasons? Links between appraisals,control strategies and intrusions across countries. Journal of Obsessive-Compulsive and Realted Disorders.
85. Hilchey, C. A., & Clark, D. A. (in press). Context in anxiety sensitivity: The role of expectancy, catastrophic misinterpretations, and diminished reappraisal in response to hypothetical physical arousal scenarios.Cognitive Therapy and Research.
84. Clark, D. A., & Inozu, M. (in press). Unwanted intrusive thoughts: Cultural, contextual, covariationa, and characterological determinants of diversity. Journal of Obsessive-Compulsive and Realted Disorders.
83. Clark, D. A., Abramowitz, J., et al. (in press). Part 3. A question of perspective:The association between intrusive thoughts and obsessionality in 11 countries. Journal of Obsessive-Compulsive and Related Disorders.
82. Radomsky, A. S., Alcolado, G. M., Abramowitz, J., Alonso, P., Belloch, A., Bouvard, M., Clark, D. A., et.al. (in press). Part 1. You can run but you can’t hide: Intrusive thoughts on six continents. Journal of Obsessive-Compulsive and Related Disorders.
81. Dozois, D. J. A., Mikail, S., Alden, L. E., Bieling, P. J., Bourgon, G., Clark, D. A., Drapeau, M., Greenberg, L., Hunsley, J., & Johnston, C. (accepted). The CPA Presidential Task Force on Evidence-Based Practice of Psychological Treatments. Canadian Psychologist.
80. del Palacio-Gonzalez, A., & Clark, D. A. (in press). Cognitive specificity in normal fear and sadness: An investigation of emotional reactivity and recovery from experimental mood induction. Cognitive Therapy and Research.
79. Hale, M. A. & Clark, D. A. (2014). When good people have bad thoughts: Religiosity and the emotional regulation of guilt-inducing intrusive thoughts. Journal of Psychology and Theology, 41, 24-35.
78. Clark, D. A. (2013). Collaborative empiricism: A cognitive response to exposure reluctance and low distress tolerance. Cognitive and Behavioral Practice, 20, 445-454.
77. Soriano, G.-G., Belloch, A., Clark, D. A., & del Palacio, A. (2012).Self-worth contingencies and obsessionality: A promising approach to vulnerability? Journal of Obsessive Compulsive and Related Disorders, 1, 196-202.
76. Inozu, M., Karanci, N., & Clark, D. A. (2012). Why are religious individuals more obsessional? The role of mental control beliefs and guilt in Muslims and Christians. Journal of Behavior Therapy and Experimental Psychiatry, 43, 959-966.
75. Inozu, M., Clark, D. A., & Karanci, A. N. (2012). Scrupulosity in Muslins and Christians: A Comparative Study of Turkish and Canadian Students, Behavior Therapy, 43, 190-202.
74. Soriano, G.-G., Belloch, A., Morillo, C., & Clark, D. A. (2011). Symptom dimensions in obsessive-compulsive disorder: From normal cognitive intrusions to clinical obsessions. Journal of Anxiety Disorders, 25, 474-482.
73. Clark, D. A., & Beck, A. T. (2010). Cognitive theory and therapy of anxiety and depression: A convergence with neurobiological findings. Trends in Cognitive Science, 14, 418-424.
72. Belloch, A., Reina, N., Garcia-Soriano, G., & Clark, D. A. (2009). Inventario Clark-Beck de Obsesión-Compulsión (C-BOCI): Validación para su uso en población española. Revista de Psicopatologia y Psicologia Clinica, 14, 95-105.
71. Clark, D. A. (2009). Mental control of anxious and depressive cognitions. International Journal of Cognitive Therapy, 2, 207-209.
70. Clark, D. A., & Purdon, C. (2009). Mental control of unwanted intrusive thoughts: A phenomenological study of nonclinical individuals. International Journal of Cognitive Therapy, 2, 267-281.
69. Clark, D. A. (2009). Cognitive behavior therapy for anxiety and depression: Possibilities and limitations of a transdiagnostic perspective. Cognitive Behavior Therapy, 30(suppl. 1), 29-34.
68. Clark, D. A., & Taylor, S. (2009). The transdiagnostic perspective in cognitive behavioral therapy for anxiety and depression: New wine for old wineskins? Journal of Cognitive Psychotherapy: An International Quarterly, 23, 60-66.
67. Taylor, S., & Clark, D. A. (2009). Transdiagnostic cognitive-behavioral treatments for mood and anxiety disorders: Introduction to the special issue. Journal of Cognitive Psychotherapy: An International Quarterly, 23, 3-5.
66. Steer, R. A., Clark, D. A., Kumar, G., & Beck, A. T. (2008). Common and specific dimensions of self-reported anxiety and depression in adolescent outpatients. Journal of Psychopathology and Behavioral Assessment, 30, 163-170.
65. Clark, D. A. (2005). Focus on ‘cognition’ in cognitive behavior therapy for OCD: Is it really necessary? Cognitive Behavior Therapy, 34, 131-139.
64. Clark, D. A. (2005) Lumping vs. splitting: A commentary on subtyping in OCD. Behavior Therapy, 36, 401-404.
63. Clark, D. A., Antony, M. M., Beck, A. T., Swinson, R. P, & Steer, R. A. (2005). Screening for obsessive and compulsive symptoms: Validation of the Clark-Beck Obsessive-Compulsive Inventory, Psychological Assessment, 17, 132-143.
62. Obsessive Compulsive Cognitions Working Group (2005). Psychometric validation of the Obsessive Beliefs Questionnaire and the Interpretation of Intrusions Inventory: Part 2. Factor analyses and testing of a brief version. Behaviour Research and Therapy, 43, 1527-1542.
61. Oates-Johnson, T., & Clark, D. A. (2004). Sociotropy, body dissatisfaction and perceived disapproval in dieting women: A prospective diathesis-stress study of dysphoria. Cognitive Therapy and Research, 28, 715-731.
60. Obsessive Compulsive Cognitions Working Group (2003). Psychometric validation of the Obsessive Beliefs Questionnaire and the Interpretation of Intrusions Inventory: Part I. Behaviour Research and Therapy, 41, 863-878.
59. Clark, D. A., Purdon, C., & Wang, A. (2003). The Meta-Cognitive Beliefs Questionnaire: Development of a measure of obsessional beliefs. Behaviour Research and Therapy, 41, 655-669.
58. Clark, D. A. (2002). Unwanted mental intrusions in clinical disorders: An introduction. Journal of Cognitive Psychotherapy: An International Quarterly, 16, 123-126.
57. Wang, A., & Clark, D. A. (2002). Haunting thoughts: The problem of obsessive mental intrusions. Journal of Cognitive Psychotherapy: An International Quarterly, 16, 193-208.
56. Clark, D. A. (2001). The persistent problem of negative cognition in anxiety and depression: New perspectives and old controversies. Behavior Therapy, 32, 3-12.
55. Purdon, C. & Clark, D. A. (2001). Suppression of obsession-like thoughts in nonclinical individuals: Impact on thought frequency, appraisal and mood state. Behaviour Research and Therapy, 39, 1163-1181.
54. Obsessive Compulsive Cognitions Working Group (2001). Development and initial validation of the Obsessive Beliefs Questionnaire and the Interpretations of Intrusions Inventory. Behaviour Research and Therapy, 39, 987-1006.
53. Clark, D. A. (2000). Cognitive behavior therapy for obsessions and compulsions: New applications and emerging trends. Journal of Contemporary Psychotherapy, 30, 129-147.
52. Clark, D. A. (2000). Case conceptualization and treatment failure: a commentary. Journal of Cognitive Psychotherapy: An International Quarterly, 13, 331-337.
51. Purdon, C., & Clark, D. A. (2000). White bears and other elusive intrusions: Assessing the relevance of thought suppression for obsessional phenomena. Behavior Modification, 24, 425-453.
50. Clark, D. A., Purdon, C., & Byers, E. S. (2000). Appraisal and control of sexual and non-sexual intrusive thoughts in university students. Behaviour Research and Therapy, 38, 439-455.
49. Clark, D. A. (1999). Cognitive behavioral treatment of obsessive-compulsive disorders: A commentary. Cognitive and Behavioral Practice, 6, 408-415.
48. Purdon, C. & Clark, D. A. (1999). Meta-cognition in obsessive compulsive disorders. Clinical Psychology and Psychotherapy, 6, 102-110.
47. Steer, R. A., Clark, D. A., Beck, A. T., & Ranieri, W. F. (1998). Common and specific dimensions of self-reported anxiety and depression: the BDI-II vs. the BDI-IA. Behaviour Research and Therapy, 37, 183-190.
46. Byers, S. Purdon, C., & Clark, D.A. (1998). Sexual intrusive thoughts of college students. The Journal of Sex Research, 35, 359-369.
45. Clark, D. A. (1998). Canadian perspectives on research in depression. Canadian Journal of Behavioural Science, 30, 207-212.
44. Clark, D. A., Crewdsen, N., & Purdon, C. (1998). No worries, no cares: an investigation into self-reported “non-distress” in college students. Cognitive Therapy and Research, 22, 209-224.
43. Clark, D. A., Cook, A., & Snow, D. (1998). Depressive symptom differences in hospitalized, medically ill, depressed psychiatric inpatients and nonmedical controls. Journal of Abnormal Psychology, 107, 38-48.
42. Clark, D. A., & Claybourn, M. (1997). Process characteristics of worry and obsessive intrusive thoughts. Behaviour Research and Therapy, 35, 1139-1141.
41. Clark, D. A. (1997). Is cognitive therapy ill-founded? A commentary on Lyddon and Weill. Journal of Cognitive Psychotherapy: An International Quarterly, 11, 91-98.
40. Clark, D. A. (1997). Twenty years of cognitive assessment: Current status and future directions. Journal of Consulting and Clinical Psychology, 65, 996-1000.
39. Steer, R. A., & Clark, D. A. (1997). Psychometric characteristics of the Beck Depression Inventory-II with college students. Measurement and Evaluation in Counseling and Development, 30, 128-136.
38. Clark, D. A., Steer, R. A., Haslam, N., Beck, A. T., & Brown, G. K. (1997). Personality vulnerability, psychiatric diagnoses, and symptoms: Cluster analyses of the Sociotropy-Autonomy Scales. Cognitive Therapy and Research, 21, 267-283.
37. OCD Beliefs Working Group. (1997). Cognitive assessment of obsessive compulsive disorder. Behaviour Research and Therapy, 35, 667-681.
36. Beck, A. T., & Clark, D. A. (1997). An information processing model of anxiety: reconsidering the role of automatic and strategic processes. Behaviour Research and Therapy, 35, 49-58.
35. Clark, D. A., Steer, R. A., Beck, A. T., & Snow, D. (1996). Is the relationship between anxious and depressive cognitions and symptoms linear or curvilinear? Cognitive Therapy and Research, 20, 135-154.
34. Clark, D. A., & Purdon, C. (1995). The assessment of unwanted intrusive thoughts: A critique of the literature. Invited essay for Behaviour Research and Therapy, 33, 967-976.
33. Clark, D. A. (1995). Perceived limitations of standard cognitive therapy: A consideration of efforts to revise Beck's theory and therapy. Journal of Cognitive Psychotherapy, 9, 153-172.
32. Steer, R. A., Clark, D. A., Beck, A. T., & Ranieri, W. F. (1995). Common and specific dimensions of self-reported anxiety and depression: A replication. Journal of Abnormal Psychology, 104, 542-545.
31. Clark, D. A., & Oates, T. (1995). Daily hassles, major and minor life events, and their interaction with sociotropy and autonomy. Behaviour Research and Therapy, 33, 819-823.
30. Clark, D. A., Steer, R. A., Beck, A. T., & Ross, L. (1995). Psychometric characteristics of revised sociotropy and autonomy scales in college students. Behaviour Research and Therapy, 33, 325-334.
29. Clark, D. A., & Steer, R. A. (1994). Use of nonsomatic symptoms to differentiate clinically depressed and nondepressed hospitalized patients with chronic medical illness. Psychological Reports, 75, 1089-1090.
28. Purdon, C., & Clark, D. A. (1994). Perceived control and appraisal of obsessional intrusive thoughts: A replication and extension. Behavioural and Cognitive Psychotherapy, 22, 269-285.
27. Clark, D. A., Steer, R. A. & Beck, A. T. (1994). Common and specific dimensions of self-reported anxiety and depression: Implications for the cognitive and tripartite models. Journal of Abnormal Psychology, 103, 645-654.
26. Somoza, E., Steer, R. A., Beck, A. T. & Clark, D. A. (1994). Differentiating major depression and panic disorders by self-report and clinical rating scales: ROC analysis and information theory. Behaviour Research and Therapy, 32, 771-782.
25. Purdon, C. & Clark, D. A. (1994). Obsessive intrusive thoughts in nonclinical subjects. Part II. Cognitive appraisal, emotional response and thought control strategies. Behaviour Research and Therapy, 32, 403-410.
24. Steer, R. A., Beck, A. T., Clark, D. A. & Beck. J. S. (1994). Psychometric properties of the Cognition Checklist with psychiatric outpatients and university students. Psychological Assessment, 6 67-70.
23. Steer, R. A., Beck, A. T. & Clark, D. A. (1994). Symptom dimensions of the SCL-90-R: A test of the tripartite model of anxiety and depression. Journal of Personality Assessment, 62, 525-536.
22. Clark, D. A. & Beck, A. T., & Beck, J. S. (1994). Symptom differences in major depression, dysthymia, panic and generalized anxiety disorder. American Journal of Psychiatry, 151, 205-209.
21. Clark, D. A. & Purdon, C. (1993). New perspectives for a cognitive theory of obsessions. Australian Psychologist, 28, 161-167.
20. Purdon, C. & Clark, D. A. (1993). Obsessive intrusive thoughts in nonclinical subjects. Part I. Content and relation with depressive, anxious and obsessional symptoms. Behaviour Research and Therapy, 31, 713-720.
19. Steer, R. A., Ranier, W. F., Beck, A. T. & Clark, D. A. (1993). Further evidence for the Validity of the Beck Anxiety Inventory with Psychiatric Outpatients. Journal of Anxiety Disorders, 7, 195-205.
18. Clark, D. A., Beck, A. T. & Brown, G. K. (1992). Sociotropy, autonomy and life event perceptions in dysphoric and nondysphoric individuals. Cognitive Therapy and Research, 16, 635-652.
17. Beck, A. T., Sokol, L., Clark, D. A., Berchick, B., & Wright, F. (1992). A crossover study of focused cognitive therapy for panic disorder. American Journal of Psychiatry, 149, 778-783.
16. Clark, D. A. (1992). Depressive, anxious and intrusive thoughts in psychiatric inpatients and outpatients. Behaviour Research and Therapy, 30, 93-102.
15. Clark, D. A. & Beck, A. T. (1991). Personality factors in dysphoria: A psychometric refinement of Beck's Sociotropy-Autonomy Scale. Journal of Psychopathology and Behavioral Assessment, 13, 369-388.
14. Clark, D. A., Beck, A. T. & Stewart, B. (1990) Cognitive specificity and positive-negative affectivity: Complementary or contradictory views on anxiety and depression? Journal of Abnormal Psychology, 99, 148-155.
13. Clark, D. A. Feldman, J. & Channon, S. (1989) Dysfunctional thinking in anorexia and bulimia nervosa. Cognitive Therapy and Research, 13, 377-387.
12. Clark, D. A. & Nicki, R. M. (1989) Frequency as a moderating variable in self-report measures of negative cognition. Behaviour Research and Therapy, 27, 475-477.
11. Clark, D. A., Beck, A. T. & Brown, G. (1989) Cognitive mediation in psychiatric outpatients: a test of the content-specificity hypothesis. Journal of Personality and Social Psychology, 56, 958-964.
10. Beck, A. T. & Clark, D. A. (1988) Anxiety and depression: an information processing perspective. Anxiety Research, 1, 23-36.
9. Clark, D. A. (1988) The validity of measures of cognition: A review of the literature. Cognitive Therapy and Research, 12, 1-20.
8. Clark, D. A., Hemsley, D. & Nason-Clark, N. (1987) Personality and sex differences in emotional responsiveness to positive and negative cognitive stimuli. Personality and Individual Differences, 8, 1-7.
7. Clark, D. A. (1986) Cognitive-affective interaction: A test of the "specificity" and "generality" hypotheses. Cognitive Therapy and Research, 10, 607-623.
6. Clark, D. A. (1986) Factors influencing the retrieval and control of negative cognitions. Behaviour Research & Therapy, 24, 151-159.
5. Clark, D. A., & Hemsley, D. (1985) Individual differences in the experience of depressive and anxious, intrusive thoughts. Behaviour Research & Therapy, 23, 625-633.
4. Clark, D. A. & deSilva, P. (1985) The nature of depressive and anxious, intrusive thoughts: distinct or uniform phenomena? Behaviour Research & Therapy, 23, 383-393.
3. Clark, D. A. & Bolton, D. (1985) An investigation of two self-report measures obsessional phenomena in obsessive- compulsive adolescents: a research note. Journal of Child Psychology & Psychiatry, 26, 429-437.
2. Clark, D. A. & Bolton, D. (1985) Obsessive-compulsive adolescents and their parents: a psychometric study. Journal of Child Psychology & Psychiatry, 26, 267-276.
1. Clark, D. A., Sugrim, I. & Bolton, D. (1982) Primary obsessional slowness: a nursing treatment programme with a thirteen year old male adolescent. Behaviour Research & Therapy, 20, 289-292.