Selected Publications

 

Below is a selected list of scientific publications, book chapters, and books that exemplify our Lab’s research approach and areas of expertise. Further references can be found in each of our members’ individual publication pages.

 

 

2021: Current scientific publications (including Early View)

 

AlShebali, M., Becker, C., Kellett, S., AlHadi, A., & Waller, G. (2021). Adapting the body project to a non-western culture: a dissonance-based eating disorders prevention program for Saudi women. Eating and Weight Disorders: Studies on Anorexia, Bulimia and Obesity, 26, 2503–2512.  https://doi.org/10.1007/s40519-021-01104-9

 

Banyard, H., Behn, A.J., & Delgadillo, J. (2021). Personality disorders and their relation to treatment outcomes in cognitive behavioural therapy for depression: A systematic review and meta-analysis. Cognitive Therapy and Research, 45, 561–576. https://doi.org/10.1007/s10608-021-10203-x

 

Barkham, M., Saxon, D., Hardy, G. E., Bradburn, M., Galloway, D., Wickramasekera, N., Keetharuth, A. D., Bower, P., King, M., Elliott, R., Gabriel, L., Kellett, S., Shaw, S., Wilkinson, T., Connell, J., Harrison, P., Ardern, K., Bishop-Edwards, L., Ashley, K… & Brazier, J. E. (2021). Person-centred experiential therapy versus cognitive behavioural therapy delivered in the English Improving Access to Psychological Therapies service for the treatment of moderate or severe depression (PRaCTICED): A pragmatic, randomised, non-inferiority trial. The Lancet Psychiatry, 8(6), 487–499.  https://doi.org/10.1016/S2215-0366(21)00083-3

 

Bone, C., Simmonds-Buckley, M., Thwaites, R., Sandford, D., Merzhvynska, M., Rubel, J., . . . Delgadillo, J. (2021). Dynamic prediction of psychological treatment outcomes: development and validation of a prediction model using routinely collected symptom data. The Lancet Digital Health, 3(4), e231-e240.

 

Broglia, E., Millings, A., & Barkham, M. (2021). Student mental health profiles and barriers to help seeking: When and why students seek help for a mental health concern. Counselling and Psychotherapy Research. Advance online publication. https://doi.org/10.1002/capr.12462

 

Chang, P.G.R.Y., Delgadillo, J., & Waller, G. (2021). Early response to psychological treatment for eating disorders: A systematic review and meta-analysis. Clinical Psychology Review, 86, 102032. https://doi.org/10.1016/j.cpr.2021.102032

 

Chekroud, A.M., Bondar, J., Delgadillo, J., Dohery, G., Wasil, A., Fokkema, M., . . . Choi, K. (2021). The promise of machine learning in predicting treatment outcomes in psychiatry. World Psychiatry, 20(2), 154-170. https://doi.org/10.1002/wps.20882

 

Cooper, M., Stafford, M.R., Saxon, D., Beecham, J., Bonin, E., Barkham, M., . . .  Ryan, G. (2021). Humanistic counselling plus pastoral care as usual versus pastoral care as usual for the treatment of psychological distress in adolescents in UK state schools (ETHOS): A randomised controlled trial. The Lancet Child & Adolescent Health. Advance online publication. https://doi.org/10.1016/S2352-4642(20)30363-1

 

Delgadillo., J. (2021). Machine learning: A primer for psychotherapy researchers. Psychotherapy Research, 31(1), 1-4. https://doi.org/10.1080/10503307.2020.1859638

 

Delgadillo, J., Ali, S., Fleck, K., Agnew, C., Southgate, A., Parkhouse, L., Cohen, Z. D., DeRubeis, R. J., & Barkham, M. (2021). Stratified care vs stepped care for depression: A cluster randomized clinical trial. JAMA Psychiatry. Published online December 8, 2021. https://doi.org/10.1001/jamapsychiatry.2021.3539

 

Delgadillo, J., McMillan, D., Gilbody, S., de Jong, K., Lucock, M., Lutz, W., . . . Ali, S. (2021). Cost-effectiveness of feedback-informed psychological treatment: Evidence from the IAPT-FIT Trial. Behaviour Research and Therapy. Advance online publication.

 

Dolan, N., Simmonds-Buckley, M., Kellett, S., Siddell, E., & Delgadillo, J. (2021). Effectiveness of stress control large group psychoeducation for anxiety and depression: Systematic review and meta-analysis. The British Journal of Clinical Psychology. Advance online publication. https://doi.org/10.1111/bjc.12288

 

Firth, N., Barkham, M., Delgadillo, J., Allery, K., Woodward, J., & O'Cathain, A. (2021). Socioeconomic deprivation and dropout from contemporary psychological intervention for common mental disorders: A systematic review. Administration and Policy in Mental Health and Mental Health Services Researchhttps://doi.org/10.1007/s10488-021-01178-8

 

Gaskell, C., Askey-Jones, R., Groom, M., & Delgadillo, J. (2021). Effectiveness of transdiagnostic seminars to support patients with common mental disorders: A multi-service practice research network study. Behavioural and Cognitive Psychotherapy. Advance online publication. https://doi.org/10.1017/S1352465821000114

 

Gaskell, C., Hague, B., & Kellett, S. (2021). Effectiveness of the unified protocol for treating co-morbid health anxiety and depression: An empiricl case study. Behavioural and Cognitive Psychotherapy. Advance online publication. https://doi.org/10.1017/S1352465821000205

 

Hernandez, M.E.H. & Waller, G. (2021). Are we on the same page? A comparison of patients’ and clinicians’ opinions about the importance of CBT techniques. Cognitive Behaviour Therapy. Advance online publication. https://doi.org/10.1080/16506073.2020.1862292

 

Hiney-Saunders, K., Ousley, L. Caw, J., Cassinelli, E., & Waller, G. (2021). Effectiveness of treatment for adolescents and adults with anorexia nervosa in a routine residential setting. Eating Disorders: The Journal of Treatment and Prevention, 29(1), 103-117. https://doi.org/10.1080/10640266.2019.1656460

 

Kellett, S., Simmonds-Buckley, M., Limon, E., Hague, J., Hughes, L., Stride, C., & Millings, A. (2021). Defining the assessment and treatment competencies to deliver low-intensity cognitive behavior therapy: A multi-center validation study. Behavior Therapy, 52(1), 15-27. https://doi.org/10.1016/j.beth.2020.01.006

 

Kellett, S. & Stockton, D. (2021). Treatment of obsessive morbid jealousy with cognitive analytic therapy: A mixed-methods quasi-experimental case study. British Journal of Guidance & Counselling. Advance online publicaiton. https://doi.org/10.1080/03069885.2021.1929834

 

Laker, V. & Waller, G. (2021). Does comparison of self with others influence body image among adult women? An experimental study in naturalistic settings. Eating and Weight Disorders - Studies on Anonerxia, Bulimia and Obesity. Advance online publication. https://doi.org/10.1007/s40519-021-01196-3

 

Lorimer, B., Delgadillo, J., Kellett, S., & Lawrence, J. (2021). Dynamic prediction and identification of cases at risk of relapse following completion of low-intensity cognitive behavioural therapy. Psychotherapy Research, 31(1), 19-32. https://doi.org/10.1080/10503307.2020.1733127

 

Lorimer, B., Kellett, S., Nye, A., & Delgadillo, J. (2021). Predictors of relapse and recurrence following cognitive behavioural therapy for anxiety-related disorders: a systematic review. Cognitive Behaviour Therapy, 50(1), 1-18. https://doi.org/10.1080/16506073.2020.1812709

 

Merzhvynska, M., Simmonds-Buckley, M., Delgadillo, J., & Kellett, S. (2021). Trajectories of change in the therapeutic alliance during Cognitive Analytic Therapy for depression. Psychology and Psychotherapy: Theory, Research and Practice. Advance online publication. https://doi.org/10.1111/papt.12322

 

Noble, L., Firth, N., Delgadillo, J.,  Kellett, S. (2021). An investigation of the competencies involved in the facilitation of CBT-based group psychoeducational interventions. Behavioural and Cognitive Psychotherapy. Advance online publication. https://doi.org/10.1017/S1352465821000084

 

Pott, S. L., Delgadillo, J., & Kellett, S. (2021). Is behavioral activation an effective and acceptable treatment for co-occurring depression and substance use disorders? A meta-analysis of randomized controlled trials. Journal of Substance Abuse Treatment. Advance online publication. https://doi.org/10.1016/j.jsat.2021.108478

 

Priestley, M., Broglia, E., Hughes, G., & Spanner, L. (2021). Student perspectives on improving mental health support services at university. Counselling and Psychotherapy Research. Advance online publication. https://doi.org/10.1002/capr.12391

 

Sheldon, E., Simmonds-Buckley, M., Bone, C., Mascarenhas, T., Chan, N., Wincott, M., . . . Barkham., M. (2021). Prevalence and risk factors for mental health problems in university undergraduate students: A systematic review with meta-analysis. Journal of Affective Disorders, 287, 282-292. https://doi.org/10.1016/j.jad.2021.03.054

 

Simmonds-Buckley, M., Catarino, A., & Delgadillo, J. (2021). Depression subtypes and their response to cognitive behavioural therapy: A latent transition analysis. Depression and Anxiety. Advance online publication. https://doi.org/10.1002/da.23161

 

Stockton, D., Kellett, S., Wilkinson, N., Hague, J., Bliss, P., Heaver, M., & Devine, A. (2021). A feasibility and pilot randomised dismantling trial of the efficacy of self-as-context during acceptance and commitment therapy. International Journal of Cognitive Therapy. Advance online publication. https://doi.org/10.1007/s41811-021-00118-6

 

Tait, J., Edmeade, L., & Delgadillo, J. (2021). Are depressed patients’ coping strategies associated with psychotherapy treatment outcomes? Psychology and Psychotherapy: Theory, Research and Practice. Advance online publication. https://doi.org/10.1111/papt.12368

 

Wakefield, S., Delgadillo, J., Kellett, S., White, S., & Hepple, J. (2021). The effectiveness of brief cognitive analytic therapy for anxiety and depression: A quasi-experimental case-control study. British Journal of Clinical Psychology. Advance online publication. https://doi.org/10.1111/bjc.12278

 

 

2021: Book chapters

 

Barkham, M., & Lambert, M. J. (2021). The efficacy and effectiveness of psychological therapies. In M. Barkham, Lutz, W., & Castonguay, L. G. (Eds.). Bergin & Garfield’s handbook of psychotherapy and behavior change. pp. 135–189. 7th Edition. Wiley.

 

Castonguay, L. G., Barkham, M., Youn, S. J., & Page, A. C. (2021). Practice-based evidence – Findings from routine clinical settings. In M. Barkham, Lutz, W., & Castonguay, L. G. (Eds.). Bergin & Garfield’s handbook of psychotherapy and behavior change. pp. 191–222. 7th Edition. Wiley.

 

Castonguay, L. G., Eubanks, C. F., Iwakabe, S., Krause, M., Page, A. C., Zilcha-Mano, S., Lutz, W., & Barkham, M. (2021). Epilogue: Prevalent themes, predictions, and recommendations. In M. Barkham, Lutz, W., & Castonguay, L. G. (Eds.). Bergin & Garfield’s handbook of psychotherapy and behavior change. pp. 793–802. 7th Edition. Wiley.

 

Cohen, Z. D., Delgadillo, J., & DeRubeis, R. J. (2021). Personalized treatment approaches. In M. Barkham, Lutz, W., & Castonguay, L. G. (Eds.). Bergin & Garfield’s handbook of psychotherapy and behavior change. pp. 673–703. 7th Edition. Wiley.

 

Lutz, W., Castonguay, L. G., Lambert, M. J., & Barkham, M. (2021). Traditions and new beginnings: Historical and current perspectives on research in psychotherapy and behavior change. In M. Barkham, Lutz, W., & Castonguay, L. G. (Eds.). Bergin & Garfield’s handbook of psychotherapy and behavior change. pp.3–18. 7th Edition. Wiley.

 

Lutz, W., de Jong, K., Rubel, J. A., & Delgadillo, J. (2021). Measuring, predicting, and tracking change in psychotherapy. In M. Barkham, Lutz, W., & Castonguay, L. G. (Eds.). Bergin & Garfield’s handbook of psychotherapy and behavior change. pp. 89–133. 7th Edition. Wiley.

 

 

2021: Books

 

M. Barkham, Lutz, W., & Castonguay, L. G. (Eds.). Bergin & Garfield’s handbook of psychotherapy and behavior change. 7th Edition. Wiley.

 

 

Previous select publications (2020 and earlier)

 

Barkham, M., Broglia, E., Dufour, G., Fudge, M., Knowles, L., Percy, A., . . . Williams, C. (2019). Towards an evidence‐base for student wellbeing and mental health: Definitions, developmental transitions and data sets. Counselling and Psychotherapy Research, 19, 351-357. https://doi.org/10.1002/capr.12227

 

Blood, L., Adams, G., Turner, H., & Waller, G. (2020). Group dialectical behavioural therapy for binge-eating disorder: Outcomes from a community case series. International Journal of Eating Disorders, 53(11), 1863-1867. https://doi.org/10.1002/eat.23377

 

Bone, C., Delgadillo, J., & Barkham, M. (2020). A systematic review and meta-analysis of the good-enough level (GEL) literature. Journal of Counseling Psychology. Advance online publication. https://doi.org/10.1037/cou0000521

 

Broglia, E., & Knowles, L. (2020). Navigating the landscape of ‘evidence’ in research. In S. Bager-Charleson & A. McBeath (Eds.), Enjoying research in counselling and psychotherapy (pp. 265-278). Cham, Switzerland: Palgrave Macmilllan.

 

Broglia, E., Millings, A., & Barkham, M. (2019). Counseling with guided use of a mobile well-being app for students experiencing anxiety or depression: Clinical outcomes of a feasibility trial embedded in a student counseling service. JMIR mHealth and uHealth, 7(8). e14318. https://doi.org/10.2196/14318

 

Connell, J., Carlton, J., Grundy, A., Buck, E. T., Keetharuth, A. D., Ricketts, T., ... Brazier, J. (2018). The importance of content and face validity in instrument development: Lessons learnt from service users when developing the Recovering Quality of Life measure (ReQoL). Quality of Life Research27(7), 1893-1902. https://doi.org/10.1007/s11136-018-1847-y

 

Delgadillo, J., Branson, A., Kellett, S., Myles-Hooton, P., Hardy, G., & Shafran, R. (2020). Therapist personality traits as predictors of psychological treatment outcomes. Psychotherapy Research, 30(7), 857-870. https://doi.org/10.1080/10503307.2020.1731927

 

Delgadillo, J., de Jong, K., Lucock, M., Lutz, W., Rubel, J., Gilbody, S., . . . McMillan, D. (2018). Feedback-informed treatment versus usual psychological treatment for depression and anxiety: a multisite, open-label, cluster randomised controlled trial. The Lancet Psychiatry, 5(7), 564-572. https://doi.org/10.1016/S2215-0366(18)30162-7

 

Delgadillo, J., & Gonzalez Salas Duhne, P. (2020). Targeted prescription of cognitive-behavioral therapy versus person-centered counseling for depression using a machine learning approach. Journal of Consulting and Clinical Psychology, 88(1), 14–24. https://psycnet.apa.org/doi/10.1037/ccp0000476

 

Delgadillo, J., Rubel, J., & Barkham, M. (2020). Towards personalized allocation of patients to therapists. Journal of Consulting and Clinical Psychology, 88(9), 799–808. https://doi.org/10.1037/ccp0000507

 

Faija, C. L., Connell, J., Welsh, C., Ardern, K., Hopkin, E., Gellatly, J., . . . Bee, P. (2020). What influences practitioners’ readiness to deliver psychological interventions by telephone? A qualitative study of behaviour change using the Theoretical Domains Framework. BMC Psychiatry20(1), 1-16. https://doi.org/10.1186/s12888-020-02761-3

 

Firth, N., Barkham, M., Kellett, S., & Saxon, D. (2015). Therapist effects and moderators of effectiveness and efficiency in psychological wellbeing practitioners: A multilevel modelling analysis. Behaviour Research and Therapy, 69, 54-62. https://doi.org/10.1016/j.brat.2015.04.001

 

Firth, N., Bone, C., & Holt, R. (2020). Health psychology attendance: A multilevel analysis of patient-level predictors and therapist effects. Health Psychology, 39(11), 945–955. https://doi.org/10.1037/hea0001021

 

Firth, N., Saxon, D., Stiles, W. B., & Barkham, M. (2019). Therapist and clinic effects in psychotherapy: a three-level model of outcome variability. Journal of Consulting and Clinical Psychology, 87, 345–356. https://doi.org/10.1037/ccp0000388

 

Firth, N., Saxon, D., Stiles, W. B., & Barkham, M. (2020). Therapist effects vary significantly across psychological treatment care sectors. Clinical Psychology & Psychotherapy, 27, 770-778. https://doi.org/10.1002/cpp.2461

 

Gonzalez Salas Duhne, P., Horan, A. J., Ross, C., Webb, T. L., & Hardy, G. E. (2020). Assessing and promoting the use of implementation intentions in clinical practice. Social Science & Medicine, 265, 113490. https://doi.org/10.1016/j.socscimed.2020.113490

 

Hallam, C., Simmonds‐Buckley, M., Kellett, S., Greenhill, B., & Jones, A. (2020). The acceptability, effectiveness, and durability of cognitive analytic therapy: Systematic review and meta‐analysis. Psychology and Psychotherapy: Theory, Research and Practice. Advance online publication. https://doi.org/10.1111/papt.12286

 

Hernandez Hernandez, M. E., Waller, G., & Hardy G. (2020). Cultural adaptations of cognitive behavioural therapy for Latin American patients: unexpected findings from a systematic review. The Cognitive Behaviour Therapist, 13, e57. https://doi.org/10.1017/S1754470X20000574

 

Laker, V., & Waller, G. The development of a body comparison measure: The CoSS. Eating and Weight Disorders: Studies on Anorexia, Bulimia and Obesity, 25, 879–888. https://doi.org/10.1007/s40519-019-00698-5 

 

Lorimer, B., Delgadillo, J., Kellett, S. & Brown, G. (2020). Exploring relapse through a network analysis of residual depression and anxiety symptoms after cognitive behavioural therapy: A proof-of-concept study. Psychotherapy Research, 30(5), 650-661. https://doi.org/10.1080/10503307.2019.1650980

 

Nye, A., Connell, J., Haake, R., & Barkham, M. (2019). Person-centred experiential therapy (PCET) training within a UK NHS IAPT service: Experiences of selected counsellors in the PRaCTICED trial. British Journal of Guidance & Counselling47(5), 619-634. https://doi.org/10.1080/03069885.2018.1544608

 

Robinson, L., Kellett, S., & Delgadillo, J. (2020). Dose-response patterns in low and high intensity cognitive behavioral therapy for common mental health problems. Depression and Anxiety, 37(3). 285-294. https://doi.org/10.1002/da.22999

 

Simmonds-Buckley, M., Bennion, M. R., Kellett, S., Millings, A., Hardy, G. E., & Moore, R. K. (2020). Acceptability and Effectiveness of NHS-Recommended e-Therapies for Depression, Anxiety, and Stress: Meta-Analysis. Journal of Medical Internet Research, 22(10), e17049. https://doi.org/10.2196/17049

 

Wakefield, S., Kellett, S., Simmonds‐Buckley, M., Stockton, D., Bradbury, A., & Delgadillo, J. (2020). Improving Access to Psychological Therapies (IAPT) in the United Kingdom: A systematic review and meta‐analysis of 10‐years of practice‐based evidence. British Journal of Clinical Psychology. Advance online publication. https://doi.org/10.1111/bjc.12259