Background: Accurate psychometrics benefit from assessing given constructs within specifically defined contexts. The assessment of context-specific irrational beliefs as put forth in rational emotive behaviour therapy (REBT), under the three basic psychological needs described in self-determination theory (SDT), represents a new path for research. Under the umbrella of ‘positive psychology’, a new scale for adolescents combining REBT and SDT is the first step towards conceptualizing irrational beliefs within the three basic psychological needs. The integration of REBT and SDT would provide a more fully integrated view of adolescent mental health, and as such could provide a more cost-effective approach for preventing cognitive, emotive and behavioural disturbances in young people. Aims: The main aim of this paper is to outline the development and validation of the Rational Emotive Self Determination Scale for Adolescents (RESD-A), which measures irrational beliefs about the three basic psychological needs (autonomy, competence and relatedness). Method: To achieve this main study aim, we report the results of four studies that test the factor structure, internal consistency, construct, predictive validity, and test–re-test reliability of the 51-item RESD-A, within samples of Turkish adolescents. Results: Data analyses confirmed the theoretical expectations and yielded promising results for the validity and reliability of the RESD-A. Conclusions: The results suggest that assessment of irrational beliefs in the context of autonomy, competence and relatedness is possible and valuable for the treatment of adolescents.

This study evaluated the effectiveness of Rational Emotive Behavior Therapy (REBT) for outpatients with GAD and mild depression and tested the effectiveness of REBT to an active, alternative treatment, Humanistic, Client-Centered Therapy (HCCT) in a clinical setting. The study aimed to understand whether REBT is a more effective treatment than HCCT through testing both pre-treatment and including three-month follow-up results. Thirty-one participants were assessed for overall psychopathological variables such as anxiety, depression, levels of unhealthy negative emotions and regret, activation, hope and nothingness as ontological well-being (OWB) variables before and after a 12 week intervention as well as during a threemonth follow-up. We randomly assigned participants to either REBT or HCCT. The psychotherapists followed strict guidelines to incorporate the distinctive features of REBT. This included educating clients about irrational and rational beliefs, introducing the binary model of emotional distress, using a range of disputing techniques (logical, philosophic, and functional), and discussing alternative rational beliefs such as unconditional acceptance of self, others, and life. The HCCT group was treated with Rogerian techniques such as unconditional positive regard, accepting negative emotions, and reflection. The clients completed the Beck Depression Inventory, Beck Anxiety Inventory, Shortened Attitude and Beliefs Scale, the Ontological Well-being Scale, and the healthy and unhealthy negative emotions scale. The outcomes were analyzed using split plot ANOVA with post hoc, Reliable Change Index, and Clinical Significance Change Index. Although split-plot ANOVA results showed that there was not significant difference in main effect of treatment between REBT and HCCT groups, further detailed analysis such as main effect of time, time by interaction values, Reliable Change Indices, clinically significant change analysis, and post hoc indicated that REBT treatment was more beneficial than HCCT treatment at any of the three time points in most variables. Another experimental study with larger sample is needed to confirm the result in future studies.

Rational Emotive Behavioral Therapy (REBT) is one of the therapeutic approaches under cognitive behavioral therapy that puts central emphasis on irrational beliefs in psychological counseling. This approach suggests that irrational beliefs are the source of psychological disorders. This study investigated the validity and reliability of the Turkish version of General Attitudes and Beliefs Scale's shortened version (SGABS) in REBT. The sample size were 901. Turkish version of SGABS's language equivalency, exploratory and comfirmatory factor analysis, internal consistency analysis, test retest analysis were investigated in this research. In literature, there are many questionnaires that measure irrational beliefs but those questionnaires. However they are criticized in terms of they have so many items, measuring unclear cognitive structures, they mixed emotional and behavioral items with cognition, and their factor structures based on theoretical facts. Additionally they are critisized because of cultural differences were limitedly confronted in these scales. Among these measures, 26-item SGABS was not highly criticized in comparison to earlier questionnaires measuring irrational beliefs. Original questionnaire measures irrational beliefs in 7-factor structure. In this research, the internal consistency alpha of the questionnaire founded to be .84. Reliability analysis of this questionnaire had statistically significant relationship with other psychological variables. The questionnaire's test-retest results were highly consistent as well. According to the results Turkish adapted version of SGABS is valid and reliable.

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Background:The cognitive restructuring of maladaptive beliefs within many cognitive behavioural psychotherapies typically encourages the client to undertake self-reflection. However, whilst self-consciousness can aid self-regulation, it is also implicated in a broad Grange of psychopathologies. The extent to which self-consciousness is associated with psychological distress is yet to be fully determined, but recent literature suggests that irrational beliefs, as proposed within rational emotive behaviour theory (REBT) may play an important role.Aims:The aim of the study was to test the mediational effects of self-consciousness, specifically reflection and rumination, on the relationship between irrational beliefs and psychological distress. Based on past research, it was hypothesized that reflection and rumination would mediate the positive relationship between irrational beliefs and psychological distress. We expected irrational beliefs to interact with rumination to positively predict psychological distress, and irrational beliefs to interact with reflection to negatively predict psychological distress.Method:The present research tested a structural equation model (SEM) in which rumination and reflection mediated the relationship between irrational beliefs and psychological distress.Results:Results indicated that rumination mediates the positive relationship between irrational beliefs and psychological distress. However, in contrast to our hypotheses, significant mediation did not emerge for reflection.Conclusions:This study is the first to show how irrational beliefs and rumination interact to predict psychopathology using advanced statistical techniques. However, future research is needed to determine whether similar mediational effects are evident with rational beliefs as opposed to irrational beliefs.