The transdiagnostic approach argues that the common features are needed to be taken into account \[e.g. distress intolerance (DI), intolerance of uncertainty (IU), worry)\] underlying emotional disorders rather than evaluating them separately due to the fact that the dissection of anxiety disorders has increased with each emerging version of the Diagnostic and Statistical Manual of Mental Disorders (DSM), in which the classification of anxiety disorders resulted in an increased number of intervention protocols for each disorder. This also caused an increase of comorbidity among anxiety disorders. Transdiagnostic approach offers a unified protocol (UP) for strengthening the common features, and thereby both preventing the emergence of emotional disorders or intervening the symptom severity of emotional disorders, which can be applied to different types of emotional disorders. The main aim of this study is to develop a UP which is planned to be applied as a group therapy. The UP will include interventions developing the levels of common transdiagnostic features (DI, IU and worry). The study's second aim is to investigate the effect of the developed UP on DI, IU and worry. The third one is to search the effect of the developed UP on symptom severity levels of anxiety disorders. Fourthly, this study will search if the levels of transdiagnostic common features (DI, IU and worry) will predict the levels of symptom severity of anxiety disorders'.
Being diagnosed with at least one of the following disorders in the pre-interview (SCID 5 interview for diagnosis): generalized anxiety disorder (GAD), panic disorder (PD), social anxiety disorder (SAD) or anxiety disorder not otherwise specified (NOS).
Active substance use or having a psychiatric history related to substance use
Having a co-diagnosis of psychotic disorders or bipolar disorders
Receiving active psychotherapy support
Being not graduated from primary school
Parallel
Unified Protocol for Anxiety Disorders
Other interventionThe UP is planned in group therapy format and includes interventions on common transdiagnostic features. The sessions in the protocol are planned as follows: Session 1 - Assessment: introduction, talking on group rules and the process, setting goals Session 2 - Psychoeducation: the CBT model is introduced. Session 3 - Emotions: the role of emotions are discussed. Session 4, 5 \& 6 - Thoughts: the role of thoughts is mentioned. The participants learn to challenge unfunctional thoughts and generate alternative explanations. Also, exercises on excessive worry are applied. Session 7 - Behaviors: the role of behaviors and the things that can/cannot be controlled are discussed. Session 8 - Evaluation \& Maintaining Accomplishments: includes a review of what has been learnt during the group therapy and an evaluation on maintaining the accomplishments. Session 9 - Follow-up session: one month later.
Client-centered Supportive Therapy
Other interventionClient-entered therapy provides a non-directive supportive environment for the participants, that includes reflective listening and nonjudgmental and empathic communication. In this group, no CBT intervention will be applied. Through the supportive and non-directive environment, only the effect of relationship will be investigated as a common factor in psychotherapy.
Anxiety
Generalized Anxiety Disorder-7 (GAD-7) scale will be used to measure anxiety level. GAD-7 is a self-report scale consisting of 7 items. It is a 4-point Likert type scale. Items are scored between 0 (Not at all) and 3 (Nearly every day). Scores of 5, 10, and 15 are taken as the cut-off points for mild, moderate and severe anxiety. In the total score, the cut-off score for GAD diagnosis is 10.
Distress Tolerance
Distress Tolerance Scale (DTS) scale will be used to measure distress tolerance level. DTS consists of a total of 15 items. Each item is rated on a 5-point Likert scale range from 1 (Strongly disagree) to 5 (Strongly disagree). A low total score indicates low distress tolerance level.
Intolerance of Uncertainty
Intolerance of Uncertainty Scale (IUS) - Short Version will be used to measure the level of intolerance of uncertainty. IUS-12 is a self-report scale consisting of 12 items in total. It is a 5-point Likert scale. Each item is scored between 1 (not at all characteristic of me) to 5 (entirely characteristic of me). A high total score indicates a high level of intolerance to uncertainty.
Worry
Penn State Worry Questionnaire will be used to measure the level of worry. PSWQ is a self-report scale with a 5-point Likert-type, consisting of a total of 16 items. Scale items are scored between 1 (Not at all typical) - 5 (Very typical of me). An increase in the PSWQ total score indicates a high level of worry.
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