Blog
The Psychotherapy Practice Research Network (PPRNet) blog began in 2013 in response to psychotherapy clinicians, researchers, and educators who expressed interest in receiving regular information about current practice-oriented psychotherapy research. It offers a monthly summary of two or three published psychotherapy research articles. Each summary is authored by Dr. Tasca and highlights practice implications of selected articles. Past blogs are available in the archives. This content is only available in English.
This month...
…I blog about psychotherapies for borderline personality disorder, reliability of research on CBT plus ERP for Obsessive-Compulsive Disorder, and hope and expectancy factors.
Type of Research
Topics
- ALL Topics (clear)
- Adherance
- Alliance and Therapeutic Relationship
- Anxiety Disorders
- Attachment
- Attendance, Attrition, and Drop-Out
- Client Factors
- Client Preferences
- Cognitive Therapy (CT) and Cognitive-Behavioural Therapy (CBT)
- Combination Therapy
- Common Factors
- Cost-effectiveness
- Depression and Depressive Symptoms
- Efficacy of Treatments
- Empathy
- Feedback and Progress Monitoring
- Group Psychotherapy
- Illness and Medical Comorbidities
- Interpersonal Psychotherapy (IPT)
- Long-term Outcomes
- Medications/Pharmacotherapy
- Miscellaneous
- Neuroscience and Brain
- Outcomes and Deterioration
- Personality Disorders
- Placebo Effect
- Practice-Based Research and Practice Research Networks
- Psychodynamic Therapy (PDT)
- Resistance and Reactance
- Self-Reflection and Awareness
- Suicide and Crisis Intervention
- Termination
- Therapist Factors
- Training
- Transference and Countertransference
- Trauma and/or PTSD
- Treatment Length and Frequency
May 2018
Therapist Characteristics That Affect Client Outcomes
Lingiardi, V., Muzi, L., Tanzilli, A., & Carone, N. (2017). Do therapists' subjective variables impact on psychodynamic psychotherapy outcomes? A systematic literature review. Clinical Psychology & Psychotherapy. Advance online publication.
Psychotherapists differ in their effectiveness such that some therapists are more effective than others, and these differences account for up to 9% of client outcomes. Despite this, not many studies have looked at therapist personal characteristics that might be associated with better or worse outcomes. In this systematic literature review, Lingiardi and colleagues focus on empirical studies of psychodynamic therapists and their personal characteristics that might affect therapeutic processes and client outcomes. The authors included only quantitative studies. Thirty studies representing nearly 1,400 therapists and 6,000 clients were included in the review. Most studies occurred in a naturalistic setting, and most therapists were female (66%) with an average of over 9 years of experience. The studies looked at various therapist personal characteristics and their association with therapeutic processes and client outcomes. Therapist attachment security (ability to engage in meaningful loving relationships and adaptively manage emotions) was associated with better client outcomes. Similarly, therapists who reported better experiences of parental care and better quality relationships with attachment figures tended to have clients who rated a more positive therapeutic alliance. In addition, therapist interpersonal functioning was evaluated in several studies. Therapists who were rated as more affiliative (warm, friendly) and less hostile (cold, rejecting) tended to have clients who achieved better outcomes. Further, therapist facilitative interpersonal skills (emotional expressiveness, verbal fluency, warmth, empathy) were associated with better client outcomes in short-term therapy. Finally, several studies assessed therapist self-concept (stable means by which one treats oneself). Therapists who were more hostile or negative toward the self tended to be more critical or ignoring of clients, which lead to poorer client outcomes.
Practice Implications
Therapist personal characteristics (attachment security), interpersonal skills (warmth, friendliness, empathy), and self concept (how one treats oneself) may account for why some therapists are more effective than others. Problems in these areas might lead to problematic countertransference (emotional reactions on the part of therapists triggered by client issues) or therapeutic alliance ruptures, both of which are related to poorer client outcomes. Therapists can learn methods of managing countertransference and repairing alliance ruptures. If the personal characteristics are persistent and problematic, therapists might consider personal therapy.
March 2018
Therapeutic Alliance Predicts Client Outcomes in CBT
Cameron, S. K., Rodgers, J., & Dagnan, D. (2018). The relationship between the therapeutic alliance and clinical outcomes in cognitive behaviour therapy for adults with depression: A meta‐analytic review. Clinical Psychology and Psychotherapy, DOI: 10.1002/cpp.2180.
The therapeutic alliance refers to the collaborative agreement between therapist and client on the tasks of therapy (homework, treatment approach, intervention style) and goals of therapy (to reduce depressive symptoms, to improve interpersonal relationships, to cope better with stress), plus the emotional bond between therapist and client. The alliance is part of a larger concept of therapeutic relationship that also includes the real relationship between client and therapist and the transference relationship (maladaptive relational patterns in the client based on a history of relationships with parental figures). The alliance is thought to be a common factor across different therapeutic orientations, including cognitive behavioral therapy (CBT), time-limited psychodynamic psychotherapy (TLPP), and interpersonal psychotherapy (IPT). In fact, the alliance is known to have a moderate and robust relationship to client outcomes regardless of who rates the alliance (therapist, client, observer), which measure is used, and when in therapy the alliance is rated (early, middle, late). Although Beck emphasized the alliance as a key therapeutic principle in CBT, some CBT writers argue that the alliance is not so important. In this study, Cameron and colleagues conducted a meta analysis of 13 randomized controlled trials that assessed the relationship between therapeutic alliance and CBT outcomes for depression in adult clients. The overall mean correlation between therapeutic alliance and outcome was r = 0.26 (95% CI [.19–.32]), which indicates a moderate and significant relationship. This is very close to the value found in a larger meta analysis of over 200 alliance – outcome studies.
Practice Implications
The study demonstrates the importance of the therapeutic alliance to client outcomes in CBT. The association was at similar levels to those found in other types of therapy. Therapists conducting CBT should attend to building and maintaining an alliance, which provides a context to facilitate CBT interventions. If a client is not completing homework for example, it is likely that there is a lack of agreement on tasks of therapy, and this part of the alliance may need to be renegotiated. Therapists may also benefit from routinely assessing the alliance in therapy with their clients on a session by session basis using short and easy to use measures. Reviewing these scales regularly can alert a therapist to potential problems in the alliance and the need to repair any tensions or ruptures.
November 2017
Do Psychotherapy Trainees Get Better with More Training?
Owen, J., Wampold, B. E., Kopta, M., Rousmaniere, T., & Miller, S. D. (2016). As good as it gets? Therapy outcomes of trainees over time. Journal of Counseling Psychology, 63, 12-19.
Does psychotherapy training improve trainees’ knowledge and skills? Do trainees improve in their ability to produce positive client outcomes over time? The research on training psychotherapists is mostly inconclusive. Some studies show little or no difference between trainees and experienced therapists, and others found no association between level of experience and client outcomes. On the other hand, some researchers have found a relationship between training and competence in delivering a particular type of treatment. Overall, the research seems to show that there is a lot of variability between therapists in their outcomes and on how training affects their practice and their clients’ outcomes. However, rarely do these studies assess outcomes within the same trainee over time as they accumulate more training. In this study, Owen and colleagues evaluate if psychotherapy trainees’ client outcomes improved with training over time. They assessed 114 psychology trainees at different levels of training in 47 clinics across the U.S. These training therapists saw over 1100 clients over at least a 12-month period, and many therapists were followed for three years. The average client improved, but with small effects (d = .31, CIs not reported). Therapists were more effective with clients who were more distressed (d = .66) than clients who were less distressed (d = .10), probably because more distressed clients had more room to improve. Trainees’ outcomes improved significantly over time, although their average improvement over time was small. Most importantly, trainees’ improvements over time varied so that the researchers were able to identify four patterns of change over a three year period of training: (1) one group of trainees started out with moderately good outcomes and their outcomes remained moderately good over time; (2) a second group started out with small positive effects in their client outcomes and they improved to achieve moderately good outcomes by their third year; (3) a third group of trainees started out with small positive client outcomes but their outcomes got worse by their third year; and (4) a fourth group started out with poor outcomes and improved to achieve small positive outcomes by year 3 of their training.
Practice Implications
Trainees appear to have various trajectories in their ability to foster positive client outcomes over time, and, at times, that trajectory is negative. Trainees whose outcomes get worse over time (group 3) or who do not achieve at least moderately good outcomes (group 4) may need specific training to foster better interpersonal effectiveness, empathy, management of countertransference, and humility. In general, therapists should assess their clients’ outcomes with progress monitoring tools in order to use the feedback to improve their outcomes over time. If outcomes are not positive on average, then therapists should consider remediation, further training, or consultation.
June 2017
Specific and Non-Specific Effects in Psychotherapy
Palpacuer, C., Gallet, L., Drapier, D., Reymann, J-M., Falissard, B., & Naudet, Florian (2016). Specific and non-specific effects of psychotherapeutic interventions for depression: Results from a meta-analysis of 84 studies. Journal of Psychiatric Research.
Specific effect in psychotherapy refer to those technical interventions that are based on a treatment model that are specific to a particular modality. For example, the effects on symptoms caused by transference interpretations, cognitive restructuring, or exposure might all be considered specific effects. Non-specific effects is a very broad term that sometimes refers to effects on symptoms caused by common factors across all psychotherapies like therapist empathy, therapeutic alliance, or positive regard. Non-specific effects has also been used to refer to any extra-therapeutic effects that are more peripherally related to treatments, like type of control groups used in a study, researcher allegiance, number of treatment sessions, or length of follow-up. In this meta-analysis of 84 studies of over 6000 participants, Palpacuer and colleagues examined the association between non-specific factors (defined as intervention format [group or individual], client demographics, number of treatment sessions, length of follow up, and researcher allegiance to one of the treatment modalities) and treatment outcomes for depression. First, they looked at whether the specific type of intervention (cognitive behavioral, psychodynamic, interpersonal, problem solving, and others) was associated with reductions in depressive symptoms. Second, they assessed if the non-specific factors added to the prediction of improved depressive symptoms and accounted for some of the effects of specific types of interventions. Similar to previous findings, all psychotherapies were significantly more effective than waiting-list controls. However, the effects of the specific intervention approaches became non-significant when the non-specific factors were included in the analysis. That is, non-specific factors seemed to account for some of the effects of the specific treatments. In particular, if the study was conducted in North America vs Europe (β = 0.55, 95% CI: 0.22; 0.90), if the researcher had an allegiance to a particular therapeutic approach (β = 0.29, 95% CI: 0.07; 0.52), or if the number of sessions was higher (β = 0.03, 95% CI: 0.01; 0.04) then depressive outcomes were better.
Practice Implications
This meta analysis of over 87 studies suggests that although various psychotherapies are effective, there remain questions about how and why they work. For example, the findings suggest that North American patients may have different expectations and higher responses to treatment, that a researcher's belief in the effectiveness of their favored intervention actually improves patients' outcomes, and that a higher number of sessions may also result in better outcomes. These factors appear to account for an important proportion of the specific effects of each type of psychotherapy.
May 2017
Effectiveness of Psychodynamic Couple Therapy in a Naturalistic Setting
Hewison, D., Casey, P., & Mwamba, N. (2016). The effectiveness of couple therapy: Clinical outcomes in a naturalistic United Kingdom setting. Psychotherapy, 53, 377-387.
Current randomized controlled trials (RCTs) of couple therapy indicate that about 60% to 70% of couples improve to some degree, and that about 35% to 50% are no longer distressed by the end of therapy. But RCTs have been criticized for being somewhat artificial because their design is based on how pharmacological treatments are tested. Psychotherapy may be more complex than pharmacotherapy in its implementation, and compared to pharmacotherapy, psychotherapy relies more heavily on the qualities of the therapist and therapeutic relationship in order to achieve good outcomes. In an RCT, individuals often have to have a specific disorder to be included in the study, and those with co-morbid disorders may be excluded. This may limit what the findings have to say about real world applications of a particular treatment. Further, therapists in RCTs may receive unusual levels of supervision and support that is seldom seen in regular clinical practice. In this large study of over 435 couples, Hewison and colleagues assessed the effectiveness of a psychodynamically-oriented couple therapy as practiced in a large not-for-profit centre that provides psychological treatment (i.e., the Tavistock clinic in the United Kingdom). All participants received couple treatment and none were randomly assigned to a control group. The couple therapy focused on insight and emotional connection and expression within the context of a therapeutic relationship. The couple relationship rather than the individual partners were the object of the therapy. The unconscious meaning of couple communication was often discussed, and therapist countertransference was seen as a source of information about the couple. Most couples in the study identified as White (77.0%), heterosexual (93.9%), and married or living in a civil partnership (58.4%). More than half of the couples were in the relationship for over 5 years and had children. Therapists were qualified couple therapists or Masters level trainees, had a mean age of 50 (range: 26 – 71), tended to be White women (60%), and were all trained at the clinic. The average number of sessions that a couple attended was 23.3 (SD = 23.5), but with a wide range (2 to 150 sessions) as might be typical in a clinical setting. Overall, individual clients reported a large significant decrease in individual psychological distress (d = -1.04), and a moderate significant decrease in marital distress (d = -0.58). Half of individuals showed a reliable reduction in their individual distress, and over a quarter of couples reported a reliable decline in their couple distress.
Practice Implications
This is the largest study of couple therapy in a naturalistic setting. The psychodynamic couple therapy was effective in reducing individual distress for almost half of the participants although reliable change in couple distress was lower. The results of this field trial indicate that couple therapy that is offered in a functioning real-world clinic setting produces results similar to what is seen in highly controlled randomized trials.
April 2017
Efficacy of Psychotherapies for Borderline Personality Disorder
Cristea, I.A., Gentili, C., Cotet, C.D., Palomba, D., Barbui, C., & Cuijpers, P. (2017). Efficacy of psychotherapies for borderline personality disorder: A systematic review and meta-analysis. JAMA Psychiatry. doi:10.1001/jamapsychiatry.2016.4287.
Borderline personality disorder (BPD) is a debilitating disorder characterized by: severe instability of emotions, relationships, and behaviors. More than 75% of those with BPD have engaged in deliberate self-harm, and suicide rates are between 8% and 10%. BPD is the most common of the personality disorders with a high level of functional impairment. Several psychotherapies have been developed to treat BPD. Most notably, dialectical behavior therapy (DBT), cognitive behavioral therapy (CBT), and psychodynamic treatments like mentalization-based and transference-focused psychotherapy. This meta-analysis by Cristea and colleagues examined the efficacy of psychotherapy for BPD. Studies included in the meta-analysis (33 trials of 2256 clients) were randomized controlled trials in which a psychotherapy was compared to a control condition for adults with BPD. For all borderline-relevant outcomes (combined borderline symptoms, self-harm, parasuicidal and suicidal behaviors) yielded a significant but small effect of the psychotherapies over control conditions at post treatment (g = 0.35; 95%CI: 0.20, 0.50). At follow up, there was again a significant effect of the psychotherapies over control conditions with a moderate effect (g = 0.45; 95% CI: 0.15, 0.75). When the different treatment types were looked at separately, DBT (g = 0.34; 95% CI: 0.15, 0.53) and psychodynamic approaches (g = 0.41; 95% CI: 0.12, 0.69) were more effective than control interventions, while CBT (g = 0.24; 95% CI: −0.01, 0.49) was not. The authors also reported a significant amount of publication bias, suggesting that published results may be positively biased in favor of the psychotherapies.
Practice Implications
The results indicate a small effect of psychotherapies at post-treatment and a moderate effect at follow-up for the treatment of BPD. DBT and psychodynamic treatment were significantly more effective than control conditions, whereas CBT was not. However, all effects were likely inflated by publication bias, indicating a tendency to publish only positive findings. Nevertheless, various independent psychotherapies demonstrated efficacy for symptoms of self harm, suicide, and general psychopathology in BPD.