P. Gilbert, M. W. Baldwin, C. Irons, J. R. Baccus and M. Palmer, “Self-Criticism and Self-Warmth: An Imagery Study Exploring Their Relation to Depression,” Journal of Cognitive Psychology: An International Quarterly, Vol. 20, No. 2, 2006, pp. 183-200.
 P. Gilbert, M. W. Baldwin, C. Irons, J. R. Baccus and M. Palmer, “Self-Criticism and Self-Warmth: An Imagery Study Exploring Their Relation to Depression,” Journal of Cognitive Psychology: An International Quarterly, Vol. 20, No. 2, 2006, pp. 183-200.
 N. B. Allen and W. E. J. Knight, “Mindfulness, Compassion for Self, and Compassion for Others: Implications for Understanding the Psychopathology and Treatment of Depression,” In: P. Gilbert, Ed., Compassion: Conceptualisations, Research and Use in Psychotherapy, Routledge, London, 2009, pp. 239-262.
 S. Joseph and D. Murphy, “Person-Centred Approach, Positive Psychology, and Relational Helping: Building Bridges,” Journal of Humanistic Psychology, Vol. 53, No. 1, 2013, pp. 26-51. http://dx.doi.org/10.1177/0022167812436426
 A. Assor, G. Roth and E. L. Deci, “The Emotional Costs of Parents’ Conditional Regard: A Self-Determination Theory Analysis,” Journal of Personality, Vol. 72, No. 1, 2004, pp. 42-88. http://dx.doi.org/10.1111/j.0022-3506.2004.00256.x
 N. E. Betz, E. Wohlgemuth, D. Serling, J. Harshbargerand and K. Klein, “Evaluation of a Measure of Self-Esteem Based on the Concept of Unconditional Self-Regard,” Journal of Counseling and Development, Vol. 74, No. 1, 1995, pp. 76-82. http://dx.doi.org/10.1002/j.1556-6676.1995.tb01826.x
 C. R. Rogers, “A Theory of Therapy, Personality, and Interpersonal Relationships as Developed in the Client-Centred Framework,” In: S. Koch Ed., Psychology: A Study of a Science, Formulations of the Person and the Social Context, McGraw-Hill, New York, 1959, pp. 184-256.
 T. G. Patterson and S. Joseph, “Development of a Self-Report Measure of Unconditional Positive Self-Regard,” Psychology and Psychotherapy: Theory, Research, and Practice, Vol. 79, No. 4, 2006, pp. 557-570. http://dx.doi.org/10.1348/147608305X89414
 K. D. Neff, K. L. Kirkpatrick and S. S. Rude. “Self-Compassion and Adaptive Psychological Functioning,” Journal of Research in Personality, Vol. 41, No. 1, 2007, pp. 139-154. http://dx.doi.org/10.1016/j.jrp.2006.03.004
 K. D. Neff and R. Vonk, “Self-Compassion versus Global Self-Esteem: Two Different Ways of Relating to Oneself,” Journal of Personality, Vol. 77, No. 1, 2009, pp. 23-50. http://dx.doi.org/10.1111/j.1467-6494.2008.00537.x
 R. A. Baer, G. T. Smith, J. Hopkins, J. Krietemeyer and L. Toney, “Using Self-Report Assessment Methods to Explore Facets of Mindfulness,” Assessment, Vol. 13, No. 1, 2006, pp. 27-45. http://dx.doi.org/10.1177/1073191105283504
 J. Deegear and D. M. Lawson, “The Utility of Empirically Supported Treatments,” Professional Psychology: Research and Practice, Vol. 34, No. 3, 2003, pp. 271-277. http://dx.doi.org/10.1037/0735-7028.34.3.271
 T. G. Patterson and S. Joseph, “Person-Centred Personality Theory: Support from Self-Determination Theory and Positive Psychology,” Journal of Humanistic Psychology, Vol. 47, No. 1, 2007, pp. 117-139. http://dx.doi.org/10.1177/0022167806293008
 K. D. Neff and P. McGehee, “Self-Compassion and Psychological Resilience among Adolescents and Young Adults. Self and Identity,” Vol. 9, No. 3, 2010, pp. 225-240. http://dx.doi.org/10.1080/15298860902979307
 R. L. Spitzer, K. Kroenke, J. B. W. Williams and the Patient Health Questionnaire Primary Care Study Group, “Validation and Utility of a Self-Report Version of PRIME-MD. The PHQ Primary Care Study,” The Journal of the American Medical Association, Vol. 282, No. 18, 1999, pp. 1737-1744. http://dx.doi.org/10.1001/jama.282.18.1737
 K. Kroenke, R. L. Spitzer and J. B. W. Williams, “The PHQ-9: Validity of a Brief Depression Severity Measure,” Journal of General Internal Medicine, Vol. 16, No. 9, 2001, pp. 606-613. http://dx.doi.org/10.1046/j.1525-1497.2001.016009606.x
 R. L. Spitzer, K. Kroenke, J. B. W. Williams and B. Lowe, “A Brief Measure for Assessing General Anxiety Disorder: The GAD-7,” Archives of Internal Medicine, 166, No. 10, 2006, pp. 1092-1097. http://dx.doi.org/10.1001/archinte.166.10.1092
 K. Kroenke, R. L. Spitzer and J. B. W. Williams, P. O., Monahan and B. Lowe, “Anxiety Disorders in Primary Care: Prevalence, Impairment, Comorbidity, and Detection,” Annuals of Internal Medicine, Vol. 146, No. 5, 2007, pp. 317-325. http://dx.doi.org/10.7326/0003-4819-146-5-200703060-00004
 B. Lowe, O. Decker, S. Müller, E. Brahler, D. Schellberg, W. Herzog and P. Y. Herzberg, “Validation and Standardization of the Generalized Anxiety Disorder Screener (GAD-7) in the General Population,” Medical Care, Vol. 46, No. 3, 2008, pp. 266-274. http://dx.doi.org/10.1097/MLR.0b013e318160d093