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Aim and Background: The purpose of the present study was to examine the psychometric properties of Multiple Sclerosis Self-Efficacy Scale (MSSS) in a sample population of Iranian patients.
Methods and Materials: This research is a descriptive- correlational study with a population of patients afflicted with MS from North Khorasan and Hamedan provinces. A number of 120 patients, who had referred to the North Khorasan and Hamadan MS Associations at an interval of two months, were chosen as the sample population and completed the Multiple Sclerosis Self-Efficacy Scale (MSSS) and Depression, Anxiety, Stress scale (DASS-21). The data collected was analyzed through factor analysis, Cronbach’s Alpha, Guttmann Split half Quotient and Pearson Correlation, in SPSS17.
Findings: The analysis of the main factors with a Promax rotation and a variance of 71.11 supported 3 factors of the main four ones. The negative correlation pattern in the Multiple Sclerosis Self-efficacy dimensions with the sub-scales of Depression and Anxiety at DASS Scale was indicative of divergence validity. Finally, the Cronbach’s Alpha with a range of 0.78- 0.90 for the Multiple Sclerosis Self-efficacy dimensions and the 0.86 quotient for the entire scale indicated the positive reliability of the scale.
Conclusions: The Multiple Sclerosis Self-efficacy Scale (MSSS) enjoyed an appropriate reliability and validity in MS Patients of North Khorasan and Hamedan provinces.

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Aim and Background: It is essential to development an accurate scale for the evaluation of emotion regulation strategies that not only integrates different important strategies into a unified multidimensional questionnaire but also complements the existing measures. The aim of this research was the evaluation of Psychometric properties Heidelberg form for emotion regulation strategies. Methods and Materials: The design of this study was testing and correlation. Statistical population of this research was all students in University of Birjand in the first year of undergraduate of 2017-2018 academic years. 301 students were selected by cluster sampling method among them. Data were collected by using Heidelberg form for Emotion Regulation Strategies (HFERST) and Cognitive Emotion Regulation Questionnaire (CERQ). To determine the Inner consistency of HFERST, Cronbach's alpha and Split-halves coefficient and to determine its validity, Content validity, EFA, CFA and Convergent validity were used. Findings: The results of exploratory factor analysis showed that the scale had a good six-factor structure that explained 55.53% of the variance. Confirmatory factor analysis confirmed this structure. The internal consistency of sub-scales was obtained with the Cronbach's alpha in the desired range. The results of Convergent validity indicated that there was a positive and significant correlation between HFERST dimensions including reappraisal, acceptance and experience suppression with Positive refocusing, positive reappraisal and acceptance of CERQ. Conclusions: The results of statistical analysis showed that the Persian version of Heidelberg Form for Emotion Regulation Strategies has acceptable psychometric properties and can be used as a reliable tool in the Iranian population.

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Aim and Background: The need for belonging has multiple and lasting effects on emotional patterns, cognitive processing, and optimal psychological functioning, and its low levels are associated with mental and physical illness. Interpersonal-psychological theory of suicidal behavior considers thwarted of interpersonal needs as the basis for suicide. The purpose of this study was to investigate the factor structure and Item-Response Characteristics of Interpersonal Needs Questionnaire (INQ-10) in Non-clinical Sample of students.
Methods and Materials: In a descriptive-correlation and validation study, 216 and 226 graduate students from Ferdowsi University of Mashhad selected through Convenience Sampling method. Data were collected using the Interpersonal Needs Questionnaire (INQ-10), and Basic Need Satisfaction in Relationships Scale (BNS-RS). Internal consistency, exploratory and confirmatory factor analysis, divergent validity, discrimination and threshold parameters and Item and test information curves were analyzed.
Findings: The results of exploratory factor analysis showed that the Interpersonal Needs Questionnaire (INQ-10) had two-factor structure with the variance explained 74.10%. The confirmatory factor analysis was confirmed. The questionnaire had good construction reliability. The divergent validity confirmed in relation to basic need satisfaction in relationships (P≤0.01). There was non-significant difference based on gender (P>0.05).
Conclusions: It seems that the Interpersonal Needs Questionnaire has a good reliability and validity in Non-clinical Sample of students and can be used in studies on the effect of contextual factors on suicide in students.