Randomized Controlled Trial on Imaginal Retraining for Problematic Alcohol Use: A Dismantling Study.

Imaginal retraining (IR) is an approach-avoidance procedure that has shown promising results in previous studies. The aim of the present study was to dismantle the efficacy of IR's components in a randomized controlled trial (RCT). We conducted a RCT with nine conditions comprising eight intervention groups and a waitlist control group (WLC). Alcohol craving (primary outcome), consumption, depressive symptoms, quality of life, subjective appraisal, and side effects were assessed online at baseline, post intervention (6 weeks), and follow-up (12 weeks). The sample consisted of 426 participants (age: M = 47.22, SD = 11.82, women: 50.5%). The intervention groups received instructions for four different components of IR (mood induction, mental avoidance of unhealthy stimuli, motor avoidance of unhealthy stimuli, approach to healthy stimuli) that were each conveyed with or without prior psychoeducation (PE). The intervention was delivered online. At total of 163 individuals (42.9%) used the intervention at least once. No group differences were found for any primary or secondary outcome after Sidák correction. Uncorrected statistics showed effects of significantly decreased alcohol consumption for the approach + PE group in the intention-to-treat and the merged motor avoidance group in the per-protocol analyses at post assessment compared with the WLC. Exploratory moderation analyses revealed that individuals with high visualization skills benefited most. The authors conclude that visualization training and motivational components may increase the efficacy and adherence of IR.

Combination of Two Behavioral Techniques Reduces Craving in Problematic Alcohol Consumption by One Third: A Randomized Controlled Trial.

INTRODUCTION: Craving alcohol is a core symptom of alcohol use disorder (AUD) and an important target for treatment. A new line of treatment for AUD aims at overriding the urge to consume alcohol by changing implicit cognitions via approach bias modification (ApBM). In a prior study, we tested a variant of ApBM called imaginal retraining, which reduced craving. As addiction and body-focused repetitive behaviors (BFRBs) share important symptoms (e.g., inability to resist urges), for the present study we merged imaginal retraining with a technique aimed at BFRB, called decoupling, to augment treatment effects. We hypothesized that the new technique, which is called 3P, would lead to a greater reduction in craving relative to (active) control conditions. METHODS: The study was conducted online. Data from 227 participants were considered. Participants were randomized to 1 out of 5 conditions. Craving for alcohol before and after the brief intervention was the primary outcome. RESULTS: Only the 3P condition lessened craving by approximately one third at an almost medium effect size (improvement: 34.5%, p = 0.003, d = 0.458). Effects were significantly larger relative to the wait-list control and two active control conditions (p's < 0.02; greater reduction than imaginal retraining at a small but nonsignificant effect size). DISCUSSION/CONCLUSION: If replicated, the combination of imaginal retraining and decoupling (3P) represents a promising, easy-to-implement self-help technique to reduce immediate craving. Long-term effects in participants with formally diagnosed AUD have not yet been investigated.

Imaginal retraining reduces craving for high-calorie food.

Imaginal retraining (IR) is a treatment derived from approach bias modification to reduce strong craving for high-calorie food. The push component (IRpush) seems to be the most effective element according to a recent dismantling trial. Conclusions derived from prior studies are limited, however, by small sample sizes and restriction of participants to women. The present study aimed to overcome these limitations and also tested a new variant of IR (3P; decoupling with the elements pull, pause, push), which has previously been found to be more effective than the standard protocol in individuals with problematic alcohol use. The study was conducted online. A total of 1,106 participants with strong craving for high-calorie food were randomized to different brief interventions of IR or a passive control group. Before and after the interventions, participants indicated their craving for high-calorie food and appraised food pictures. The main conditions of interest were IRpush and 3P. The other two experimental conditions did not contain a motor element and served as active control conditions. IRpush proved the most effective intervention and reduced craving by approximately 18%, which was significantly larger than in the passive control group. IRpush worked especially well for those with higher initial weight, higher cravings, and more dysfunctional eating behavior. The novel 3P technique significantly reduced craving across time and was especially effective for those with high BMI and craving. The study suggests that a simple self-help component of imaginal retraining, IRpush, can decrease craving for high-calorie food to a relevant extent. Future trials should elucidate whether different forms of substance-related and behavioral addictions require adapted IR or 3P protocols to increase effectiveness.

Determinants of individuals' objective and subjective financial fragility during the COVID-19 pandemic.

We examine determinants of the objective and subjective financial fragility of 2100 individuals across Australia, France, Germany, and South Africa during the COVID-19 pandemic. Objective financial fragility reflects individuals' (in)ability to deal with unexpected expenses, while subjective financial fragility reflects their emotional response to financial demands. Controlling for an extensive set of socio-demographics, we find that negative personal experiences during the pandemic (i.e., reduced or lost employment; COVID-19 infection) are associated with higher objective and subjective financial fragility. However, individuals' cognitive (i.e., financial literacy) as well as non-cognitive abilities (i.e., internal locus of control; psychological resilience) help to counteract this higher financial fragility. Finally, we examine the role of government financial support (i.e., income support; debt relief) and find that it is negatively related to financial fragility only for the economically weakest households. Our results have implications for public policymakers, providing levers for reducing individuals' objective and subjective financial fragility.

Imaginal Retraining Reduces Craving for Tobacco in 1-Year Controlled Follow-Up Study.

INTRODUCTION: Imaginal retraining is a self-help technique that adapts the principles of approach bias modification to the imagination. Imaginal retraining has been shown to reduce craving and addictive behaviours in 3 randomized controlled trials (RCTs) on problematic alcohol consumption, overweight, and tobacco use. To date, there have been no studies evaluating the long-term efficacy of the intervention. The aim of the present study was to generate first hypotheses on the long-term efficacy of imaginal retraining in smokers in a controlled 1-year follow-up study. MATERIALS AND METHODS: We recontacted the 345 participants who had taken part in an RCT on imaginal retraining for smokers 1 year later. The survey was carried out online and assessed craving for tobacco (primary outcome), smoking behaviour, well-being, and subjective appraisal. Individuals who applied the technique at least once during the previous year were categorized as the training group, whereas participants who never performed the training were categorized as the no-training group. Data were analysed using linear mixed models (LMMs). The study was preregistered as DRKS00021044. RESULTS: The completion rate was 45.5%. Less than 40% used the intervention at least once in the previous 12 months. LMM analyses showed a significant reduction in craving for tobacco for the training compared to the no-training group after 1 year. No significant group differences emerged in smoking behaviour, depressive symptoms, or quality of life. Subjective appraisal of the intervention was favorable, similar to the initial study. CONCLUSION: The present study provides preliminary support for the long-term efficacy of imaginal retraining on craving for tobacco but not on smoking behaviour, highlighting the importance of multimodal treatment concepts in smoking cessation that target a variety of maintaining factors. Future studies need to investigate the long-term efficacy of the intervention in prospective RCTs that test alternative ways of conveying the technique to improve adherence.

Unrealistic pessimism and obsessive-compulsive symptoms during the COVID-19 pandemic: Two longitudinal studies.

OBJECTIVE: Unrealistic pessimism (UP) is an aspect of overestimation of threat (OET) that has been associated with obsessive-compulsive disorder/symptoms (OCD/OCS). During the COVID-19 pandemic, UP may have played an important role in the course of OCD. To investigate the relationship, we conducted two longitudinal studies assuming that higher UP predicts an increase in OCS. METHOD: In Study 1, we investigated UP in the general population (N = 1,184) at the start of the pandemic asking about overall vulnerability to infection with SARS-CoV-2 and UP regarding infection and outcome of severe illness. Further, OCS status (OCS+/-) was assessed at the start of the pandemic and 3 months later. In Study 2, we investigated UP in individuals with OCD (N = 268) regarding the likelihood of getting infected, recovering, or dying from an infection with SARS-CoV-2 at the start of the pandemic and re-assessed OCS 3 months later. RESULTS: In Study 1, UP was higher in the OCS+ compared to the OCS- group, and estimates of a higher overall vulnerability for an infection predicted a decrease in OCS over time. UP regarding severe illness predicted an increase in symptoms over time. In Study 2, UP was found for a recovery and death after an infection with SARS-CoV-2, but not for infection itself. CONCLUSIONS: Exaggeration of one's personal vulnerability rather than OET per se seems pivotal in OCD, with UP being associated with OCD/OCS+ as well as a more negative course of symptomatology over the pandemic in a nonclinical sample. PRACTITIONER POINTS: Unrealistic optimism, a bias common in healthy individuals, is thought to be a coping mechanism promoting well-being in the face of danger or uncertainty. The current study extends findings that its inversion, unrealistic pessimism, may play an important role in obsessive-compulsive disorder and may also be involved in the development of the disorder. This study highlights the importance that prevention programs during a pandemic should include targeting unrealistic pessimism.

The day-of-invitation effect on participation in web-based studies.

Several methods have been proposed to promote participation in web-based research. Here, we examine a technique that is available at no cost: Inviting respondents per e-mail on a particular day of the week. We base our reasoning on such a day-of-invitation effect upon theories on variations in mood and work performance over the week. We conducted five experiments with large and heterogeneous samples to find out whether such effects apply for response rate (i.e., visiting the first page of a study) and retention rate (i.e., completing the study) in web-based studies. We found evidence of a small but significant day-of-invitation effect. Response rate is high at the beginning of the workweek and falls to a low on Friday. Exploratory analyses showed that this decline is higher for employed (vs. nonemployed) persons. Effects on retention rate appear to follow a less straightforward pattern. We discuss possible mechanisms that might account for the day-of-invitation effect and recommend inviting participants on Monday or Tuesday.

The impact of a tailored mindfulness-based program for resident physicians on distress and the quality of care: A randomised controlled trial.

BACKGROUND: Many resident physicians suffer from distress, which endangers their individual health and the quality of care. OBJECTIVE: To examine the impact of a tailored mindfulness-based program (MBP) for resident physicians on distress and the quality of care. METHODS: A single-centre, two-armed, longitudinal randomised controlled trial. The intervention group took part in an 8-week, tailored MBP that included a coursebook. The MBP was followed by a 4-month maintenance phase. The active control group received the coursebook for self-study. Assessments were at baseline (t0, 0 months), after the intervention (t1, 2 months), after the maintenance phase (t2, 6 months), and at follow-up (t3, 12 months). The primary outcome was a change in burnout at t2. Secondary outcomes included perceived stress, mental distress, perceived job strain, depression, anxiety, hair cortisol secretion, self-reported medical errors and third-party ratings by patients, supervisors and colleagues. RESULTS: Seventy-six participants were randomised to the intervention and 71 to the control group. The intervention group showed greater improvements in the primary outcome (burnout at t2, d = 0.32, p = 0.046), in perceived stress (d = 0.31, p = 0.046) and perceived job strain (d = 0.33, p = 0.026) at t1, and in supervisor rated empathy (d = 0.71, p = 0.037) and colleague rated attentiveness (d = 0.85, p = .006) at t2. There was no difference between groups in the other outcomes. CONCLUSION: A tailored MBP for resident physicians improved burnout and might have improved other aspects of distress and the quality of care.

Stability of nightmare frequency and its relation to neuroticism: A longitudinal study.

Models of nightmare aetiology postulate an interaction between trait and state factors. However, most of the studies that support these models have been cross-sectional and longitudinal studies are scarce. The present data were obtained from N = 888 participants completing two online dream studies carried out independently with the same online panel 2 years apart. Nightmare frequency declined over the 2-year period and these changes were related to changes in neuroticism. The effect of current psychopathology (state aspect) on nightmare frequency was significant but much smaller compared to the effect of previously measured nightmare frequency (trait aspect) and, thus, the study provided empirical evidence for diathesis-stress models. Future longitudinal studies should take a closer look at life events and other factors that increase and/or decrease nightmare frequencies.

Tracking stress via the computer mouse? Promises and challenges of a potential behavioral stress marker.

Computer mouse tracking offers a simple and cost-efficient way to gather continuous behavioral data and has mostly been utilized in psychological science to study cognitive processes. The present study extends the potential applicability of computer mouse tracking and investigates the feasibility of using computer mouse tracking for stress measurement. Drawing on first empirical results and theoretical considerations, we hypothesized that stress affects sensorimotor processes involved in mouse usage. To explore the relationship between stress and computer mouse usage, we conducted a between-participant field experiment in which N = 994 participants worked on four mouse tasks in a high-stress or low-stress condition. In the manipulation check, participants reported different stress levels between the two conditions. However, frequentist and machine learning data analysis approaches did not reveal a clear and systematic relationship between mouse usage and stress. These findings challenge the feasibility of using straightforward computer mouse tracking for generalized stress measurement.

Public acceptance of Covid-19 lockdown scenarios.

By mid-March 2020, most countries had implemented nationwide lockdown policies aimed at decelerating the spread of SARS-CoV-2. At that time, nobody knew how long these policies would have to remain in force and whether they would have to be extended, intensified or made more flexible. The present study aimed to illuminate how the general public in Germany reacted to the prospect of increasing the length, the intensity and/or the flexibility of distancing rules implied by different lockdown scenarios. Endorsement of and compliance with five specific lockdown scenarios were assessed in a large (N = 14,433) German sample. Results showed that lockdown length affected respondents' reactions much more strongly than intensity or flexibility. Additional analyses (i.e., mixture distribution modelling) showed that half of the respondents rejected any further extensions or intensifications, while 20% would endorse long-term strategies if necessary. We argue that policy-makers and political communicators should take the public's endorsement of and compliance with such scenarios into account, as should simulations predicting the effects of different lockdown scenarios.

Impact of COVID-19 on Public Mental Health and the Buffering Effect of a Sense of Coherence.

INTRODUCTION: It is claimed that the coronavirus disease 2019 (COVID-19) pandemic has had a negative impact on mental health. However, to date, prospective studies are lacking. Moreover, it is important to identify which factors modulate the stress response to the pandemic. Previously, sense of coherence (SOC) has emerged as a particularly important resistance factor. OBJECTIVE: This prospective study aimed to assess the impact of the COVID-19 outbreak on mental health and to investigate the ability of pre-outbreak SOC levels to predict changes in psychopathological symptoms. METHODS: This study assessed psychopathological symptoms and SOC before and after the COVID-19 outbreak as well as post-outbreak COVID-19-related traumatic distress in a German-speaking sample (n =1,591). Bivariate latent change score (BLCS) modeling was used to analyze pre- to post-outbreak changes in psychopathological symptoms and the ability of SOC to predict symptom changes. RESULTS: Overall, there was no change in psychopathological symptoms. However, on an individual-respondent level, 10% experienced a clinically significant increase in psychopathological symptoms and 15% met cut-off criteria for COVID-19-related traumatic distress. Using BLCS modeling, we identified a high-stress group experiencing an increase in psychopathological symptoms and a decrease in SOC and a low-stress group showing the reversed pattern. Changes in SOC and psychopathological symptoms were predicted by pre-outbreak SOC and psychopathological symptom levels. CONCLUSIONS: Although mental health was stable in most respondents, a small group of respondents characterized by low levels of SOC experienced increased psychopathological symptoms from pre- to post-outbreak. Thus, SOC training might be a promising approach to enhance the resistance to stressors.

Imaginal Retraining Reduces Cigarette Smoking: A Randomized Controlled Study.

OBJECTIVES: Smoking is a highly prevalent addictive behavior with severe and life-shortening health consequences. This is the first study to evaluate the efficacy of a newly developed imaginal variant of approach bias modification (ABM) (i.e., imaginal retraining) for the reduction of craving for tobacco and actual smoking behavior. METHODS: We randomized 345 smokers to imaginal retraining (self-help manual) or a control group (either active control or wait-list control). Assessments were carried out online. The treatment interval was 6 weeks. Craving for tobacco represented the primary outcome. The study was registered as DRKS00016860. RESULTS: Retention was 79.7% with no difference between groups. The intention-to-treat (ITT) analyses were significant for the primary outcome (Visual Analogue Scale on craving for tobacco) as well as subjective reduction of smoking (45.5 vs. 26.4%) in favor of imaginal retraining. In the treatment group, 47.6% performed the exercises at least once. This subgroup (per-protocol [PP] sample) showed a significant reduction in tobacco dependency as measured with the Cigarette Dependence Scale (short and long forms) and the Fagerström Test for Nicotine Dependence relative to controls. Number of daily cigarettes declined to a greater extent in imaginal retraining in the PP but not ITT analysis. A small dose-effect relationship emerged between craving and frequency of performance of the technique. CONCLUSION: When used regularly, imaginal retraining may reduce craving for tobacco and actual smoking behavior in a subgroup of smokers. In view of the large subgroup that did not read the manual or did not perform the exercises, alternative ways of conveying the imaginal retraining technique should be sought (e.g., demonstration via video clips). To conclude, imaginal retraining may represent a simple low-threshold technique to reduce smoking and assist current evidence-based treatment programs targeted at abstinence. It needs to be tested whether its mechanism of action deviates from standard ABM.

Development and Pilot Test of a Virtual Reality Respiratory Biofeedback Approach.

Breathing exercises with biofeedback have benefits over breathing exercises without biofeedback. However, the traditional measurement of respiratory signals that is required as part of feeding back the breath incurs high cost and effort. We propose a novel virtual reality (VR) based approach to respiratory biofeedback that utilizes the positionally tracked hand controllers integrated into modern VR systems to capture and feedback the respiration-induced abdominal movements. In a randomized controlled laboratory study, we investigated the feasibility and efficacy of the developed biofeedback algorithm. In total, 72 participants performed a short breathing exercise in VR with or without respiratory biofeedback. The feedback integration resulted in a satisfactory user experience, a heightened breath awareness, a greater focus on slow diaphragmatic breathing and an increased respiratory sinus arrhythmia. This evidences that the novel biofeedback approach is low-cost, unobtrusive, usable and effective in increasing breath awareness and promoting slow diaphragmatic breathing in the context of VR-based breathing exercises. Future studies need to investigate the broader applicability and long-term effects.

Does uncertainty breed conviction? On the possible role of compensatory conviction in jumping to conclusions and overconfidence in psychosis.

Background: Jumping to conclusions (JTC) and overconfidence in errors are well established in individuals with a liability to psychosis. Experimental research suggests that subjecting individuals to dilemmas and doubt prompts a subsequent hardening of attitudes and may foster delusion-like convictions. For the present study, we examined whether this compensatory conviction process is exaggerated in individuals with a liability to psychosis and might in part explain JTC and overconfidence. Methods: A large sample of participants from the general population were screened for psychotic experiences with the Community Assessment of Psychic Experiences scale (CAPE) and then randomly allocated to either a condition in which they should experience doubt or a control condition. Participants (final sample, n = 650) were then tested on JTC and overconfidence. Results: Participants who scored high on the positive subscale of the CAPE made fewer draws to decision, showed greater confidence, and made more errors relative to low scorers. Yet, none of the parameters was modulated by experimental condition. Conclusions: Our results at present do not support the idea that JTC is elevated by a prior experience of a dilemma or doubt. Yet, this possibility should not be entirely dismissed as the presumed process may take time to evolve and perhaps needs to be more pervasive.

Alternative or complementary attitudes toward alternative and complementary medicines.

BACKGROUND: Integrative and complementary health approaches (ICHA) are often pursued by patients facing chronic illnesses. Most of the studies that investigated the factors associated with ICHA consumption have considered that the propensity to use ICHA is a stable or fixed characteristic of an individual. However, people may prefer using ICHA in some situations and not in others, depending on the characteristics of the illness to face. Moreover, the attitude toward ICHA may differ within a single individual and between individuals so that ICHA can be used either in addition to (i.e., complementary attitude) or in place of (i.e., alternative attitude). The present study aimed at examining distinct patterns of attitudes toward ICHA in people hypothetically facing chronic illnesses that differed according to severity and clinical expression. METHODS: We conducted a web-based study including 1807 participants who were asked to imagine that they had a particular chronic illness based on clinical vignettes (mental illnesses: depression, schizophrenia; somatic illnesses: rheumatoid arthritis, multiple sclerosis). Participants were invited to rate their perceived distress and social stigma associated with each illness as well as its perceived treatability. They also rated their belief in treatment effectiveness, and their treatment preference. Four patterns of treatment choice were determined: strictly conventional, weak or strong complementary, and alternative. Bayesian methods were used for statistical analyses. RESULTS: ICHA were selected as complementary treatment option by more than 95% of people who hypothetically faced chronic illness. The complementary attitude towards ICHA (in addition to conventional treatment) was more frequent than the alternative one (in place of conventional treatment). Factors driving this preference included employment status, severity of illness, age and perceived distress, social stigma and treatability of the illness. When the label of illnesses was included in the vignettes, patterns of treatment preference were altered. CONCLUSIONS: This study provides evidence that "medical pluralism" (i.e., the integration of ICHA with conventional treatment) is likely the norm for people facing both mental or somatic illness. However, our result must be interpreted with caution due to the virtual nature of this study. We suggest that taking attitudes toward ICHA into account is crucial for a better understanding of patients' motivation to use ICHA.

Relationship of organizational culture, teamwork and job satisfaction in interprofessional teams.

BACKGROUND: Team effectiveness is often explained on the basis of input-process-output (IPO) models. According to these models a relationship between organizational culture (input = I), interprofessional teamwork (process = P) and job satisfaction (output = O) is postulated. The aim of this study was to examine the relationship between these three aspects using structural analysis. METHODS: A multi-center cross-sectional study with a survey of 272 employees was conducted in fifteen rehabilitation clinics with different indication fields in Germany. Structural equation modeling (SEM) was carried out using AMOS software version 20.0 (maximum-likelihood method). RESULTS: Of 661 questionnaires sent out to members of the health care teams in the medical rehabilitation clinics, 275 were returned (41.6%). Three questionnaires were excluded (missing data greater than 30%), yielding a total of 272 employees that could be analyzed. The confirmatory models were supported by the data. The results showed that 35% of job satisfaction is predicted by a structural equation model that includes both organizational culture and teamwork. The comparison of this predictive IPO model (organizational culture (I), interprofessional teamwork (P), job satisfaction (O)) and the predictive IO model (organizational culture (I), job satisfaction (O)) showed that the effect of organizational culture is completely mediated by interprofessional teamwork. The global fit indices are a little better for the IO model (TLI: .967, CFI: .972, RMSEA .052) than for the IPO model (TLI: .934, CFI: .943, RMSEA: .61), but the prediction of job satisfaction is better in the IPO model (R(2) = 35%) than in the IO model (R(2) = 24%). CONCLUSIONS: Our study results underpin the importance of interprofessional teamwork in health care organizations. To enhance interprofessional teamwork, team interventions can be recommended and should be supported. Further studies investigating the organizational culture and its impact on interprofessional teamwork and team effectiveness in health care are important.

[Coping with nightmares in the General population: an online study]. / Umgang mit Alpträumen in der Allgemeinbevölkerung: Eine Online-Studie.

The present study elicited a variety of coping strategies for nightmares in the general population and asked whether these coping strategies were helpful. A large-scale online survey (N=2 872, mean age: 43 years) was carried out. About 11.5% of the participants reported nightmares once a week or more often. The results indicate that sharing of nightmares was the most prevalent coping strategy, followed by re-writing the nightmare and reading about nightmares. Seeking professional help was rarely listed, even by persons with frequent nightmares and for the majority without benefit. The findings clearly show that there is a lot of work ahead providing adequate help for persons suffering from nightmares.

Too much of a good thing? Hand hygiene and the long-term course of contamination-related obsessive-compulsive symptoms.

Increased hygiene behavior may be a factor in the development of contamination-related obsessive-compulsive symptoms (C-OCS). We aimed at investigating (1) the course of C-OCS over 1 year after the start of the COVID-19 pandemic and (2) the effects of changes in hand hygiene (i.e., duration and frequency of handwashing) and related distress regulation on the long-term course of C-OCS. In a longitudinal study, we assessed 1,220 individuals from the German general population at the start of the COVID-19 pandemic (t1), 3 months later (t2), and 12 months later (t3). Pre-pandemic data were available in a subsample from 2014 (n = 430). A decrease in C-OCS over the first year of the pandemic emerged with a small effect size. Thirty-six percent of the participants scored above the clinical cut-off score at t1, 31% at t2, and 27% at t3. In 2014, only 11% scored above the clinical cut-off score. Hierarchical regression showed that C-OCS at t1 was the strongest predictor of a long-term increase in C-OCS. With small effect sizes, change in the duration (not frequency) of handwashing from t1 to t2, as well as the distress-reducing effect of handwashing served as additional predictors. Implications for information on hand hygiene guidelines are discussed.

Long-term effects of imaginal retraining in overweight and obesity: A controlled study.

BACKGROUND: Imaginal retraining (IR) is a self-help technique that targets automatic approach tendencies toward appetitive stimuli. In a randomized controlled trial (RCT; N = 384), IR reduced craving for high-calorie foods after a six-week intervention period (small effect). The aim of the present study was to evaluate long-term effects of IR in this sample. METHODS: One year after baseline, participants from the initial RCT were recontacted. A visual analogue scale measuring craving, the Food Cravings Questionnaire-Trait-reduced (FCQ-T-r), the Three-Factor Eating Questionnaire, the Beck Depression Inventory, quality of life, and subjective appraisal of the intervention were assessed online. Participants were classified as users or nonusers based on self-reported usage of IR over the previous year. RESULTS: Linear-mixed models showed no significant interaction effects of time and group for any outcome (trend level effects were found for two subscales of the FCQ-T-r). Yet, higher usage of IR was associated with greater symptom reduction. Although overall subjective appraisal of the intervention was comparably good to the initial study, usage of IR and completion rate were unsatisfactory. LIMITATIONS: Main limitations of the present study include the nonrandomized group allocation and the low completion rate. CONCLUSIONS: This study did not find evidence for the long-term efficacy of IR in individuals with craving for high-calorie foods. Only upon high usage of IR, improvement was found. However, low completion rate and usage of the intervention may have resulted in a Type-II error. Future studies may consider low-intensity professional guidance to increase adherence and assess the long-term effects of IR in RCTs.