The general objective of this study is to determine the indicators of suitability, clinical utility and satisfaction of the transdiagnostic online intervention for the treatment of emotional disorders and those derived from stress and trauma in a Mexican community sample.

The specific aims are:

• To Carry out a screening evaluation from the transdiagnostic model by evaluating clinical indicators (depression, anxiety, acute / post-traumatic stress, emotional regulation strategies, intolerance to uncertainty) and that allow determining the frequency, intensity and severity of cases identified by type of emotional problem.
• Measure the fidelity of the use of the intervention manual in each treatment condition.
• Evaluate the degree of satisfaction, acceptance, complexity and modality of the transdiagnostic intervention.
• To know the degree of suitability of the transdiagnostic intervention from the point of view of therapists and supervisors in relation to the problems of the studied sample and the recommendations for its improvement.
• To compare the clinical utility of the transdiagnostic intervention via the internet for the treatment of emotional disorders and those derived from stress and trauma against the efficacy of the CBT intervention and the waiting list group.

In recent decades, research findings indicate that cognitive-behavioral interventions, from a disorder-specific perspective, have shown great empirical support and constitute the first-line treatment for anxiety and depression care. However, these treatments are little used. In this regard, various reasons have been noted that explain the limited access and lack of availability to effective interventions; a minority of people actively seek psychological care due to their own condition of emotional distress, for fear of social stigma, for geographical reasons that separate them from health centers, for reasons of time, preference for another type of treatment or self -help, by the high cost of psychological support, which makes it inaccessible and unaffordable for both the user and the public health system. Likewise, it has been exposed that comorbidity between mental disorders, as well as the gap between research findings and clinical practice, could influence the little dissemination of effective treatments; which leads to a lack of up-to-date professionals who provide relevant interventions. Emotional dysregulation of negative affect has been found to be a study factor that is providing relevant data for a better understanding and approach to emotional disorders from a transdiagnostic perspective, a term coined from a dimensional conception to designate effective treatments aimed at two or more specific disorders. Thus, transdiagnostic treatments could help to overcome the drawbacks related to comorbidity between disorders. Now, technological progress has generated alternatives for psychological assistance, both for the evaluation and for the treatment of different emotional disorders. In this regard, the possibilities offered by technologies are highlighted; since the intervention programs supported by the Internet have been empirically tested to achieve effectiveness and efficiency / cost-benefit, and can be key to guaranteeing access to those who the interventions are inaccessible. Thus, the present study has the purpose of knowing the indicators of suitability, clinical utility and satisfaction of the transdiagnostic intervention via videoconferencing for the treatment of emotional disorders and those derived from stress and trauma.

Hypothesis

• The transdiagnostic intervention program via the internet will reduce symptoms of anxiety / depression and / or comorbid acute stress compared to a cognitive-behavioral treatment (CBT) group and a waiting list group.
• The transdiagnosis intervention program via internet will show statistical gains in the reduction of symptoms of anxiety / depression and / or acute stress, and a clinically significant improvement greater than the CBT intervention program and the waiting list group.
• There will be a higher acceptance / satisfaction index reported by the participants in the transdiagnostic intervention program via the internet compared to the CBT intervention and with the group without treatment.
• It will be found that emotional regulation functions as moderating variables of clinical change.
• The changes will be maintained for three and six months after the end of the transdiagnosis intervention program.

Inclusion Criteria:

1. be of legal age;
2. voluntarily participate in the study;
3. meet diagnostic criteria for emotional disorders (anxiety or depression) according to the International Neuropsychiatric Interview- Mini, version 5.0, and show a score ≤ 25 on the Beck Anxiety Depression Inventory and / or ≤ 30 on the Inventory Depression of Beck-BDI-II,
4. have access to a computer equipment with an Internet connection, (e) have a valid email address, (f) have basic digital skills in the use of a system operating and internet browsing.

Exclusion Criteria:

1. psychotic disorder;
2. alcohol and drug abuse;
3. medical illness whose severity or characteristics prevent the performance of the intervention;
4. be receiving psychological and / or pharmacological treatment during the study.

Elimination criteria:

1. not accepting the conditions of informed consent
2. absence in two consecutive sessions to the synchronous treatment sessions.

The information will be available in a private server or in a open server of the journal(s) that we will publish the articles that will be the result of this study. The informed consent is already shared in the register of clinical trials.

This data will be available in december 2022 and it will be available for 5 years. It will be shared in the databases of the journal where the article(s) will be published.

Open access saving personal and sensitive data of the participants.

Double-blinded: The initial interview by the evaluator will be recorded and the video / audio will be shared with an independent evaluator who does not know the case for evaluation. Once the evaluation is completed, users will be randomly assigned to one of the study conditions. The randomization will be carried out by an independent researcher through the random.stg software in a 1: 1: 1 ratio by saturation of blocks of 12 per condition. The coordinator will inform the participant of the condition in which he / she will participate in the study (experimental or control waiting list) and, depending on the characteristics of said condition, he / she will be discharged from the study and will put him / her in contact with the advisor who has been assigned to you.