Background and objective: The aim of this study was to investigate the psychometric properties of the Persian version of the Pure Procrastination Scale (PPS) including reliability, validity, measurement invariance among demographic variables and exploratory and confirmatory factor analysis. Method: In this cross-sectional study, 390 college students from the three universities in Tehran were asked to fill out a battery of four self-report measures that included PPS, DERS, DASS-21, and SWLS questionnaires. Results: The EFA result showed three factors on this scale. PPS measures three dimensions of procrastination called decisional procrastination, behavioral procrastination, and timeliness. The results of multi-group confirmatory factor analysis showed cross group invariance of the factor structure, measurement weights, structural covariances and measurement residuals of PPS across demographic variables. The results revealed high internal consistency and high test-retest reliability. There were statistically significant correlations between PPS and its subscales and DASS-21, DERS, and SWLS. Conclusion: Overall, PPS showed good reliability and validity in Iranian population and it could be applied for assessing their procrastination.

Background: Procrastination is a common and widespread phenomenon that affects 15-20% of the general population and 50% of students. Since developing and providing beneficial and effective interventions for procrastination needs a strong, comprehensive theoretical background explanation, the aim of the study was to assess the underlying transdiagnostic factors of procrastination and presenting a causal model. Methods: In this cross-sectional study, 390 college students were asked to fill out a packet of self-report measures, which included the Pure procrastination scale, Difficulties in emotion regulation scale, Depression-anxiety-stress scales, Frost multidimensional perfectionism scale, Rumination response scale, Penn state worry questionnaire, Acceptance and action questionnaire. The causal model was tested using structural equation modeling (SEM). Results: Results of the SEM indicate that perfectionism was significantly associated with increasing emotion dysregulation (β=0.446, P<0.001) and emotion dysregulation was significantly associated with increasing anxiety (β=0.499, P<0.001) and depression (β=0.478, P<0.001), and then anxiety and depression with other variables, such as worry (β=0.245, P<0.001; β=0.004, P=0.935), rumination (β=0.046, P=0.424; β=0.418, P<0.001) and experiential avoidance (β=0.277, P<0.001; β=0.319, P<0.001) related to procrastination. Finally, worry has the most significant increasing effect on procrastination. The very small root mean square error of approximation (RMSEA=0.038), together with large values of comparative fit index (CFI=0.985), relative fit index (RFI=0.917), and normed fit index (NFI=0.979) indicated that the model was well fit. Conclusion: Perfectionism, emotion dysregulation, negative affects, worry, rumination, and experiential avoidance, known as transdiagnostic factors, had a causal relationship with procrastination, and reducing each transdiagnostic factor will improve procrastination. This study could be considered as a cornerstone for further studies on procrastination from a transdiagnostic approach.

Background: Emotional Intelligence (EI) is a kind of social intelligence and the main aspect of social maturity that improves the psychological health of adolescents. Based on the theory of Petrides, EI is made up of a distinctive series of traits and emotional selfperceptions related to the personality dimensions named trait emotional intelligence. Trait Emotional Intelligence Questionnaire-Adolescent Short Form (TEIQue-ASF) is one of the few instruments for evaluating trait EI in adolescents.Objectives: This study aimed to examine the psychometric properties of TEIQue-ASF in Iranian adolescents. Methods: In this cross-sectional study, the sample consisted of 550 high school students who were selected through randomized cluster sampling from four high schools in Tehran. In addition to the TEIQue-ASF scale, we used the Schutte Emotional Intelligence Scale (SEIS) and the Junior Eysenck Personality Questionnaire (JEPQ) in this study. All analyses were carried out by IBM SPSS-22.0. Results:The results revealed high internal consistency (Cronbach's α: 0.86, P < 0.001) and subscales of the TEIQue-ASF were significantly correlated with the subscales of SEIS (P < 0.05), psychoticism, neuroticism, and extraversion (P < 0.05). Factor analysis also verified the original four-factor structure (well-being, self-control, emotionality, and sociability). Conclusions:The Farsi version of TEIQue-ASF is a reliable and valid scale to assess the trait emotional intelligence of Iranian adolescents and may, therefore, be a considerable measure for assessing trait emotional intelligence in educational and clinical contexts among adolescents.

Background: Although improving well-being and psychological health is an important goal in the treatment of inpatient and outpatient populations, there are few measures in this field to assess such an important concept. The Schwartz Outcome Scale-10 (SOS-10) is a brief, cost-effective and user-friendly tool that could be used for this purpose in a wide variety of populations and clinical situations. Objectives: In this study, the psychometric properties of the SOS-10 were investigated among the Iranian population. Methods: The participants consisted of 181 non-patients selected from among students of

Objective: Marital conflict can be described as the state of tension or stress between couples. Accordingly, couples who are unable to regulate their negative emotions experience fragile relationships. This study aimed to compare the effects of Emotion-Focused Couple Therapy (EFCT) and Acceptance and Commitment Therapy (ACT) on Cognitive Emotion Regulation (CER) strategies and marital conflict. Methods: The study sample included 28 married women who were randomly assigned to the EFCT and ACT groups. The questionnaire battery included the Questionnaire of Marital Conflicts, the Cognitive Emotion Regulation Questionnaire, and the Second Edition of the Structured Clinical Interview for the Diagnostic and Statistical Manual of Mental Disorders (DSM) (SCID-II). Results: The result of the Independent Samples t-test indicated no difference in pretest scores of the study participants. However, significant differences were determined between the study groups in the posttest phase (P<0.001). Additionally, the Paired Samples t-test results revealed significant differences between pretest and posttest scores between the EFCT (P<0.001) and ACT (P<0.028 for marital conflict, P<0.001 for adaptive CER strategies, & P<0.031 for non-adaptive CER strategies) groups. Moreover, EFCT was clinically more effective than ACT. Accordingly, the effect size of EFCT and ACT for marital conflict was measured as 2.33 and 0.83; respecting adaptive and non-adaptive CER strategies, these values were computed as 2.89 and 2.02 as well as 2.89 and 0.88, respectively. Conclusion: Overall, EFCT and ACTT were effective in improving marital conflict and CER strategies. Besides, EFCT was clinically more effective than ACT in this regard.