Routine Outcome Monitoring and Clinical Feedback in Psychotherapy: Recent Advances and Future Directions.

In the past decade, there has been an increase in research related to the routine collection and active use of standardized patient data in psychotherapy. Research has increasingly focused on personalization of care to patients, clinical skills and interventions that modulate treatment outcomes, and implementation strategies, all of which appear to enhance the beneficial effects of ROM and feedback. In this article, we summarize trends and recent advances in the research on this topic and identify several essential directions for the field in the short to medium term. We anticipate a broadening of research from the focus on average effects to greater specificity around what kinds of feedback, provided at what time, to which individuals, in what settings, are most beneficial. We also propose that the field needs to focus on issues of health equity, ensuring that ROM can be a vehicle for increased wellbeing for those who need it most. The complexity of mental healthcare systems means that there may be multiple viable measurement solutions with varying costs and benefits to diverse stakeholders in different treatment contexts, and research is needed to identify the most influential components in each of these contexts.

Therapist-Level Moderators of Patient-Therapist Match Effectiveness in Community Psychotherapy.

Based on patient-reported outcomes data analyzed at the provider level, there is evidence that psychotherapists can possess effectiveness strengths and weaknesses when treating patients with different presenting concerns. These within-therapist differences hold promise for personalizing care by prospectively matching patients to therapists' historical effectiveness strengths. In a double-masked randomized controlled trial (RCT; NCT02990000), such matching outperformed pragmatically determined usual case assignment-which leaves personalized, measurement-based matching to chance-in naturalistic outpatient psychotherapy (Constantino et al., JAMA Psychiatry 78:960-969, 2021). Demonstrating that personalization can be even more precise, some research has demonstrated that the strength of this positive match effect was moderated by certain patient characteristics. Notably, though, it could also be that matching is especially important for some therapists to achieve more effective outcomes. Examining this novel question, the present study drew on the Constantino et al. (JAMA Psychiatry 78:960-969, 2021) trial data to explore three therapist-level moderators of matching: (a) effectiveness "spread" (i.e., greater performance variability across patients' presenting problem domains), (b) overestimation of their measurement-based and problem-specific effectiveness, and (c) the frequency with which they use patient-reported routine outcomes monitoring in their practice. Patients were 206 adults, randomized to the match or control condition, treated by 40 therapists who were crossed over conditions. The therapist variables were assessed at the trial's baseline and patients' symptomatic/functional impairment and global distress were assessed regularly up to 16 weeks of treatment. Hierarchical linear models revealed that only therapist effectiveness spread significantly moderated the match effect for the global distress outcome; for therapists with more spread, the match effect was more pronounced, whereas the match effect was minimal for therapists with less effectiveness spread. Notably, two therapist-level covariates unexpectedly emerged as significant moderators for the symptomatic/functional impairment outcome; for clinicians who consistently treated patients with higher versus lower average severity levels and who relatedly treated a higher proportion of patients with primary presenting problems of substance misuse or violence, the beneficial match effect was even stronger. Thus, measurement-based matching may be especially potent for therapists with more variable effectiveness across problem domains, and who consistently treat patients with more severe presenting concerns or with particular primary problems, which provides further precision in conceptualizing personalized care.

A baseline comparison of three diagnostic groups using the Progress Monitoring Tool for Eating Disorders.

Utilisation of intensive inpatient treatment for eating disorders (EDs) has climbed in the last decade, illuminating a need for better consensus on what constitutes effective treatment and context-appropriate progress/outcome monitoring during residential stays. The novel Progress Monitoring Tool for Eating Disorders (PMED) measure is specifically designed for inpatient settings. Previous research supports the factorial validity and internal consistency of the PMED; however, additional work is needed to determine its appropriateness for complex patient populations. This study used measurement invariance (MI) testing to determine if the PMED administered at programme admission measures the same items in similar ways across patients with anorexia nervosa restricting- and binge-purge subtypes (AN-R; AN-BP) and bulimia nervosa (BN, N = 1121; Mage  = 24.33 years, SD = 10.20; 100% female). Progressively constrained models were used to determine the level of invariance upheld between the three groups. Results indicated that, while the PMED meets configural and metric MI, it does not display scalar invariance. Said otherwise, the PMED similarly assesses constructs and items across AN-R, AN-BP, and BN, however the same score overall may reflect different levels of psychopathology for patients in one diagnostic category versus another. Comparisons of severity between different EDs should be made with caution, however the PMED appears to be a sound tool for understanding the baseline functioning of patients with EDs in an inpatient setting.

Trajectories of interpersonal problems in residential eating disorder treatment: Exploring the influence of primary diagnosis.

Baseline interpersonal problems have been associated with treatment outcome in eating disorders (ED) and are important for understanding ED maintenance and aetiology. Despite this evidence, little is known about trajectories of change in interpersonal problems in the context of treatment, particularly in intensive ED treatment. This study examined the trajectory of total interpersonal problems in residential ED treatment, as well as two subdomains previously highlighted in ED research of being overly Cold (interpersonally distant) or overly Domineering (interpersonally controlling), as a function of different primary presenting ED diagnoses: anorexia nervosa restricting subtype (AN-R), binge-purge subtype (AN-BP), and bulimia nervosa or binge eating (BN/BED). Interpersonal problem data were collected at admission, discharge, and 6-month follow-up. Trajectories were analysed with multilevel models. Results showed small-to-medium statistically significant reductions in interpersonal problems across diagnostic groups from admission to discharge for total interpersonal scores, and gains appeared to be maintained at follow-up for both AN groups. Patients diagnosed with primary AN experienced steeper declines in total interpersonal problems from admission to follow-up compared with patients diagnosed with BN/BED, with AN-R experiencing the steepest trajectory. Planned contrasts indicated anyone with relevant binge eating behaviours had higher average levels of both Cold, as well as Domineering problems. Exploratory contrasts suggested that patients who had more Domineering problems also exhibited more binge symptoms and were typically slower to improve. Overall, results suggest interpersonal problems are generally malleable in residential ED treatment, yet change patterns differ by presenting ED symptoms and interpersonal problem subdomain.

Baseline overly accommodating interpersonal problems in relation to parsed alliance-outcome associations in cognitive behavioral therapy for generalized anxiety disorder.

Given its interpersonal underpinnings, relational factors may be salient in psychotherapy for generalized anxiety disorder (GAD). Supporting this point, research has indicated a positive total alliance-improvement correlation in cognitive behavioral therapy (CBT) for GAD. However, less research has disaggregated this correlation into within- and between-patient components, or examined theory-informed ways in which patient characteristics influence to these components. Thus, we first investigated parsed alliance-outcome associations in CBT for GAD. Second, consistent with theory that alliance may represent a direct interpersonal change correlate, we tested whether within-patient alliance improvements were especially therapeutic for patients with higher levels of an interpersonal problem prototypical of GAD-over accommodation. Also, consistent with theory that between-patient differences in overall alliance may be influenced by patients' preexisting relational characteristics, we tested whether more overly accommodating patients reported poorer average alliances that, in turn, related to worse outcomes.Sixty-nine patients received variants of CBT. Patients rated over accommodation at baseline, and alliance and outcome across treatment.As hypothesized, within-patient alliance improvements correlated with subsequent anxiety reduction, and this association was stronger for more overly accommodating patients. All between-patient associations were nonsignificant.Results help clarify the nuanced role of alliance in CBT for GAD.

Therapeutic techniques and session impact: A practice-research network study in private practice.

Objective: This study investigated the relationship between therapeutic techniques and session impact, by examining the replicability of findings observed in a university-based training clinic (Boswell et al., 2010) in another practice-oriented setting: private practice.Method: N = 8 therapists completed session-level assessments of their technique use for N = 38 clients. The same client sample completed session-level assessments of session outcome. Technique-outcome associations were examined with multilevel models.Results: As in Boswell et al., common factors were associated with positive session impact. For clients who received higher average common factor techniques (relative to their own therapist's caseload), session impact was the poorest in sessions with higher behavioral change techniques use (relative to the client's own average). Moreover, clients with the lowest average common factor techniques (relative to their therapist's caseload) reported better session impact in sessions that involved a higher degree of session-level behavioral change techniques (relative to their own average).Conclusion: In line with Boswell et al., therapists should be mindful of the consistency of their routine technique use between- and within-clients, and this can be aided through collection of their own practice-oriented data.

A Qualitative Analysis of Stakeholder Attitudes Regarding Personalized Provider Selection and Patient-Therapist Matching.

This study explored mental health care patients and therapists' perspectives on using therapists' measurement-based and problem-specific effectiveness data to inform case assignments - a type of treatment personalization that has been shown to outperform non-measurement-based case assignment as usual (Constantino et al., 2021). We conducted semi-structured qualitative interviews with 8 patients (75% women; M age = 33.75 years) and 8 therapists (75% women; M age = 47.50 years). The interview protocols were unique to stakeholder group. Recorded responses were transcribed and qualitatively analyzed by four judges using a blend of consensual qualitative research and grounded theory methods. Derived patient domains included preferred characteristics of a provider, and experiences and suggestions regarding provider selection. Within the domains, most patients expressed an interest in accessing more specific provider information online. Additionally, most patients indicated that both provider outcome track records and personal preference information (e.g., therapist characteristics) should be considered in the therapist selection process. All patients endorsed being comfortable with having the ability to select a provider based on a list of empirically well-matched recommendations. Derived therapist domains included using routine outcomes monitoring for patient-provider matching, referral source and direct patient use of preferred provider lists, and improvements to the provider selection process. Within the domains, all therapists remarked that outcome data would be useful for matching patients to providers; however, most also indicated that outcome data should not be the only factor used in provider selection. All therapists expressed a willingness to be included in preferred provider lists that incorporate track record data. Overall, both patients and therapists held generally positive views toward using therapist effectiveness data to help personalize mental health care. Yet, both stakeholder groups acknowledged that other personalization factors should be considered alongside these data. Based on these results, our team is in the process of implementing patient-therapist match strategies in larger and more diverse mental health care contexts.

Implementation Science and Practice-Oriented Research: Convergence and Complementarity.

Implementation science is the scientific study of methods to promote the uptake of research findings and other evidence-based practices in routine care, with the goal of improving the quality and effectiveness of health services (Bauer et al., 2015). In addition to this common goal, practice-oriented psychotherapy research (and researchers) and implementation science (and scientists) share a common focus on the people and the places where treatment happens. Thus, there exists strong potential for combining these two approaches. In this article, we provide a primer on implementation science for psychotherapy researchers and highlight important areas and examples of convergence and complementarity between implementation science and practice-oriented psychotherapy research. Specifically, we (a) define and describe the core features of implementation science; (b) discuss similarities and areas of complementarity between implementation science and practice-oriented psychotherapy research; (c) discuss a case example that exemplifies the integration of implementation science and practice-oriented research; and (d) propose directions for future research and collaborations that leverage both implementation science and practice-oriented research.

Clinician perceptions of nomothetic and individualized patient-reported outcome measures in measurement-based care.

Objective: Measurement-based care (MBC), which encompasses routine outcome monitoring (ROM) and measurement feedback systems (MFSs), is an evidence-based practice (EBP) supporting treatment personalization and clinical responsiveness. Despite MBC's effectiveness, clinicians report reservations regarding its utility, which may be a function of overreliance on nomothetic (i.e., standardized) measures. Although research suggests that individualized (i.e., idiographic) patient-reported outcome measures (I-PROMs) may have the potential to overcome these obstacles, little is known regarding clinicians' perceptions of different measurement approaches to MBC. Methods: This study examined clinicians' perceptions of the clinical utility, relevance to treatment planning, and practicality of nomothetic, individualized, and combined clinical feedback provided by a simulated MFS. Three hundred and twenty-nine clinicians were randomized to one of three conditions that presented a clinical vignette comprising: (a) nomothetic, (b) individualized, or (c) combined clinical feedback. Results: Participants' perceptions of the clinical feedback were not affected by the measurement approach. However, cognitive behavioral participants reported more positive perceptions of all aspects associated with the clinical feedback. Conclusion: These results were consistent with previous findings, suggesting that clinicians' theoretical orientation may have a significant impact on their perceptions of MBC, and should be considered when designing and implementing these systems.

Prediction of eating disorder treatment response trajectories via machine learning does not improve performance versus a simpler regression approach.

OBJECTIVE: Patterns of response to eating disorder (ED) treatment are heterogeneous. Advance knowledge of a patient's expected course may inform precision medicine for ED treatment. This study explored the feasibility of applying machine learning to generate personalized predictions of symptom trajectories among patients receiving treatment for EDs, and compared model performance to a simpler logistic regression prediction model. METHOD: Participants were adolescent girls and adult women (N = 333) presenting for residential ED treatment. Self-report progress assessments were completed at admission, discharge, and weekly throughout treatment. Latent growth mixture modeling previously identified three latent treatment response trajectories (Rapid Response, Gradual Response, and Low-Symptom Static Response) and assigned a trajectory type to each patient. Machine learning models (support vector, k-nearest neighbors) and logistic regression were applied to these data to predict a patient's response trajectory using data from the first 2 weeks of treatment. RESULTS: The best-performing machine learning model (evaluated via area under the receiver operating characteristics curve [AUC]) was the radial-kernel support vector machine (AUCRADIAL = 0.94). However, the more computationally-intensive machine learning models did not improve predictive power beyond that achieved by logistic regression (AUCLOGIT = 0.93). Logistic regression significantly improved upon chance prediction (MAUC[NULL] = 0.50, SD = .01; p <.001). DISCUSSION: Prediction of ED treatment response trajectories is feasible and achieves excellent performance, however, machine learning added little benefit. We discuss the need to explore how advance knowledge of expected trajectories may be used to plan treatment and deliver individualized interventions to maximize treatment effects.

Therapist and client attitudes toward client independent review of psychotherapy sessions.

OBJECTIVES: Little consideration has been given to the possibility that clients may find therapeutic value in reviewing (i.e., watching, listening, or reading transcripts of) their own therapy sessions independently. This study aimed to evaluate prevalence, interest, and preferences in this practice, beliefs regarding potential benefits and concerns, and overall attitudes. METHODS: A diverse sample of clients (N = 275) as well as trainee (N = 85) and Master's/doctoral-level (N = 89) therapists of different therapeutic approaches completed forms online. Descriptive statistics, frequency counts, and one-way analysis of variance tests were used to analyze the data. RESULTS: Relatively few clients and therapists have engaged in this practice, but clients report interest in doing so. All participant groups identified several advantages and concerns. Clients rated overall helpfulness and harm significantly higher than therapists. CONCLUSION: Client independent review of sessions may be a promising transdiagnostic and transtheoretical treatment intervention. Future research is needed to evaluate its impact on treatment.

Post-traumatic stress disorder as a moderator of transdiagnostic, residential eating disorder treatment outcome trajectory.

OBJECTIVE: Residential treatment for severe eating disorders (EDs) is associated with primarily positive outcomes. However, less is known about the moderators of treatment response. Comorbid post-traumatic stress disorder (PTSD) diagnosis is associated with increased ED symptom severity. This study investigated whether PTSD moderated outcomes of transdiagnostic, residential ED treatment based upon the Unified Protocol. METHOD: Female patients (N = 1055) in residential ED treatment completed a clinical interview to assess PTSD diagnosis and self-reported ED, depression, and anxiety symptoms, anxiety sensitivity, experiential avoidance, and mindfulness. We tested whether PTSD moderated trajectories of symptom change from treatment admission to discharge and 6-month follow-up using multilevel models. RESULTS: PTSD moderated change in ED symptoms, depression severity, and experiential avoidance. Patients with PTSD showed steeper symptom improvements from admission to discharge. However, PTSD was associated with greater symptom recurrence after residential treatment. CONCLUSIONS: Patients with comorbid PTSD demonstrated more improvement during residential treatment, but experienced steeper posttreatment symptom recurrence.

Female Athlete Body Project Intervention with Professional Dancers: A Pilot Trial.

As aesthetic athletes, professional dancers have increased vulnerability for eating disorders (EDs), with three times higher risk than non-dancers. Among ballet dancers, generalized risk for EDs associated with internalization of western cultural female beauty ideals is compounded by idealization of a ballet-specific body ideal, a combination that confers unique vulnerability for eating pathology. Empirical support has been established for an athlete-specific intervention promoting body acceptance and reduced eating pathology among general populations of young-adult women and female collegiate athletes; the current study adapted this intervention for pilot implementation among professional ballet dancers. Participants from two elite ballet companies (N = 19) were randomized to a control and intervention condition. All participants self-reported eating pathology and related variables pre- and post-intervention, and at six-week follow-up. Post-intervention, participants receiving the intervention demonstrated reductions in body dissatisfaction, p = .005, r = -.63, dietary restraint, p = .008, r = -.59, and eating pathology, p = .007, r = -.60, as compared to control group counterparts; significant differences were retained at follow-up. Results provide preliminary evidence that this intervention has the potential to provide a feasible and acceptable means of ED prevention in female professional ballet dancers. Barriers to feasibility are identified and discussed.

Latent trajectories of eating disorder treatment response among female patients in residential care.

OBJECTIVE: Eating disorder (ED) treatment outcomes are highly variable from beginning to end of treatment; however, little is known about differential trajectories during the course of treatment. This study sought to characterize heterogeneous patterns of ED treatment response during residential care. METHOD: Participants were adolescent girls and adult women (N = 360) receiving residential ED treatment for anorexia nervosa, bulimia nervosa, binge-eating disorder, other specified feeding or eating disorder, unspecified feeding or eating disorder, or avoidant/restrictive food intake disorder. Self-report symptom assessments were completed at admission, discharge, and approximately weekly throughout the residential stay to assess curvilinear patterns of change. Latent growth mixture modeling was applied to identify subgroups of patients with similar treatment response trajectories. RESULTS: Three latent groups emerged, including gradual response (58.3%; steady improvements from admission to discharge), rapid response (23.9%; steep early improvements that were maintained through discharge), and low-symptom static response (17.8%; nearly nonclinical self-reported symptoms at admission that remained static through discharge). Groups differed on important clinical characteristics, such as body mass index, endorsement of compensatory behaviors, severity of global ED psychopathology at admission, and degree of symptom improvement by end of treatment. DISCUSSION: Patients follow heterogeneous response patterns in residential ED treatment, and these patterns are associated with differential treatment outcome. Future work should explore whether these trajectories are associated with differential outcomes at follow-up and whether tailoring clinical intervention to a patient's trajectory type can improve treatment response.

Feasibility and acceptability of a novel tool for the study of interpersonal processes in psychotherapy.

Psychotherapy process research methods often require extensive time and resources. Technology innovations, such as wearable sensors, have the potential to increase the efficiency of process data collection and processing. One such tool is the Sociometric Badge (SB), which is a portable, palm-sized device that can simultaneously record raw audio and data on social signals (e.g., speech patterns, body movement) in real-time and in varied contexts. In addition to describing the nature and implications of wearable sensing devices for psychotherapy research, this article reports results from a pilot study that examined the feasibility and acceptance of these assessment devices in comparison with traditional audio recording equipment. Undergraduate students (N = 306; Mage = 19.16 years, SD = 1.44; 50.3% female) were randomly placed into 153 dyads to mimic a psychotherapy dyad. Each dyad was randomly assigned to either a SB condition (n = 75 dyads) or a standard recording device condition (n = 78 dyads), and engaged in a conversation task. Participants completed self-report items assessing perceived relationship quality and experience with the respective recording device. Between-condition tests showed that perceived relationship quality did not differ between conditions. Participants in the audio recorder (vs. SB) condition reported more awareness of the device in the room. These findings reveal comparable acceptability and feasibility of SBs to traditional audio recorders in a simulated dyad, suggesting that wearable sensing devices may be suitable for research and practice in routine psychotherapy contexts. (PsycInfo Database Record (c) 2020 APA, all rights reserved).

Development and validation of a progress monitoring tool tailored for use in intensive eating disorder treatment.

OBJECTIVE: Despite calls for routine use of progress and outcome monitoring in private and intensive treatment centres for eating disorders (EDs), existing measures have limited relevance to these supervised treatment settings. This study sought to develop and validate the progress monitoring tool for eating disorders, a multidimensional measure for progress monitoring in the context of intensive ED treatment. METHOD: Thirty-seven items were generated by a team of content experts, clinicians, and administrative staff from the target treatment setting. Adolescent and adult females (N = 531) seeking residential ED treatment completed the items at admission as part of the clinic's routine assessment battery; 83% were retained for repeat assessment at discharge. Exploratory factor analysis was conducted for preliminary measure development. RESULTS: Results yielded a five-factor, 26-item structure explaining 50% of total variance. Final construct domains included weight and shape concern, ED behaviours and urges, emotion avoidance, adaptive coping, and relational connection. The measure demonstrated adequate internal consistency, sensitivity to change during treatment, and convergence with validated assessment measures. CONCLUSIONS: Preliminary data support the progress monitoring tool for eating disorders as a novel and valid multidimensional measure of treatment-relevant constructs. This measure may have utility in measuring treatment progress for patients receiving intensive treatment for EDs.

Monitoring processes and outcomes in routine clinical practice: A promising approach to plugging the holes of the practice-based evidence colander.

The field has struggled with fundamental issues related to evidence-based practice (EBP) implementation and science-practice integration. The development and implementation of routine monitoring and measurement-based care (MBC) strategies in naturalistic psychological service settings has emerged as a promising strategy to address fundamental questions and knowledge gaps. This conceptual paper marks the importance of routine monitoring in real world psychological services. In particular, routine monitoring has facilitated the harnessing of ecologically valid practice-based and patient-focused evidence, which would otherwise be lost to the field. In addition to tracing its historical context, the role and impact of routine monitoring is addressed in the areas of (a) documenting the effectiveness of psychological services, (b) patient-focused research and care, and (c) therapist differences and payment models. Limitations and challenges are also identified. Throughout, the public health significance of routine monitoring as it relates to clinical psychology is highlighted, including its increasingly prominent role in health care systems and mental health care policy. In addition, it is argued that routine monitoring should continue to be a vital transtheoretical and transdiagnostic evidence-based practice.

Gender differences in relations between alcohol-related compensatory behavior and eating pathology.

PURPOSE: Concerns about caloric intake associated with alcohol use (e.g., fear of weight gain) are positively associated with compensatory eating behaviors (e.g., caloric restriction, self-induced vomiting), a phenomenon that has been identified across gender. Specific motivations for compensatory behaviors differ; some relate to eating disorder (ED) pathology (e.g., shape and weight concerns), and others to alcohol (e.g., enhancing effects). Research examining motivations for alcohol-related compensatory behaviors in men is limited to date. The current study sought to assess how specific types of alcohol-related compensatory behaviors and their association with ED pathology present differently by gender. METHODS: Undergraduates (N = 530, 48% female) completed the Compensatory Eating Behaviors in Response to Alcohol Consumption Scale (CEBRACS), Eating Disorders Diagnostic Scale (EDDS), and reported height, weight, and frequency and quantity of alcohol consumption. Data were examined using linear regression, and relations between CEBRACS behaviors and eating pathology were compared across gender. RESULTS: Factors that were positively associated with EDDS scores for both men and women included alcohol-related dietary restraint, and exercise. For women, but not men, alcohol-related bulimic behavior also contributed to elevations in EDDS scores. CONCLUSIONS: Findings indicate that specific types of alcohol-related compensatory eating behaviors (i.e., dietary restraint and exercise) are positively related to ED pathology for both male and female participants. In contrast, bulimic behaviors' association with ED pathology is gender specific. Understanding gender differences in alcohol-related compensatory behaviors and ED risk may inform gender-specific intervention targets. LEVEL OF EVIDENCE: Cross-sectional descriptive study, Level V.

Implementation of transdiagnostic treatment for emotional disorders in residential eating disorder programs: A preliminary pre-post evaluation.

Objective: Data are lacking from empirically supported therapies implemented in residential programs for eating disorders (EDs). Common elements treatments may be well-suited to address the complex implementation and treatment challenges that characterize these settings. This study assessed the preliminary effect of implementing a common elements therapy on clinician treatment delivery and patient (N = 616) symptom outcomes in two residential ED programs. Method: The Unified Protocol for Transdiagnostic Treatment of Emotional Disorders was adapted to address ED and co-occurring psychopathology and implemented across sites. Therapists' treatment fidelity was rated independently to assess implementation success. Additionally, longitudinal (pre-post) design compared treatment outcomes among patients treated before and after implementation. Patient outcomes included ED and depressive symptoms, experiential avoidance, anxiety sensitivity, and mindfulness. Results: Following training and implementation, clinicians demonstrated adequate to good fidelity. Relative to pre-implementation, post-implementation patients showed significantly greater improvements in experiential avoidance, anxiety sensitivity, and mindfulness at discharge (ps ≤ .04) Relative to patients who were treated during the pre-implementation phase, patients in the post-implementation phase experienced more favorable outcomes on ED symptom severity, depression, mindfulness, and anxiety sensitivity at 6-month-follow-up (ps ≤ .001). A similar result was observed for experiential avoidance, yet this interaction effect was no longer statistically significant (p = .10) when the time x length of stay effect/covariate was added to the model. Conclusions: Preliminary pilot data support the feasibility of implementing transdiagnostic common elements therapy in residential ED treatment, and suggest that implementation may benefit transdiagnostic outcomes for patients. Clinical or methodological significance of this article: Limited data are available to guide evidence-based residential treatment for eating disorders. This study represents a unique effort to adapt, implement, and test an evidence-based therapy protocol across a large private network of intensive eating disorder treatment programs.

Confirmatory factor analysis of the Eating Disorder Examination-Questionnaire: A comparison of five factor solutions across vegan and omnivore participants.

OBJECTIVE: The Eating Disorder Examination-Questionnaire (EDE-Q) is a valid and reliable measure of eating-related pathology, but its factor structure has proven difficult to replicate. Given differences in dietary patterns in vegans compared to omnivores, proper measurement of eating disorder symptoms is especially important in studies of animal product avoiders. METHOD: This study compared goodness-of-fit of five alternative models of the EDE-Q in vegans (i.e., individuals refraining from all animal products, n = 318) and omnivores (i.e., individuals not restricting intake of animal products, n = 200). Confirmatory factor analyses were used to compare fit indices of the original four-factor model of the EDE-Q, along with alternative three-, two-, full one-, and brief one-factor models. RESULTS: No model provided adequate fit of the data in either sample of respondents. The fit of the brief one-factor model was the closest to acceptable in omnivores, but did not perform as well in vegans. Indicators of fit were comparable in vegans and omnivores across all other models. DISCUSSION: Our data confirm difficulties in replicating the proposed factor structure of the EDE-Q, including in vegans. More research is needed to determine the suitability of the EDE-Q for quantifying eating behaviors, including in those abstaining from animal products.