Sluggish Cognitive Tempo is used to describe a particular type of attention deficit, concentration, and slowness in information processing. The aim of this study was to investigate the psychometric properties of the Sluggish Cognitive Tempo Scale (SCTS) of the parent form among Iranian children. The present study is a descriptive study. A sample of 1700 people was selected from the provinces of Tehran, East Azerbaijan, West Azerbaijan, Kurdistan, Fars and Khorasan using cluster sampling method. 122 subjects were excluded from statistical ANALYSIS due to incomplete answers to the questionnaires and thus the final sample was reduced to 1578 parents. The CONFIRMATORY FACTOR ANALYSIS method and internal consistency were used to compute the Sluggish Cognitive Tempo Scale FACTORial validity and reliability, respectively. Also, in order to examine the construct validity of the Sluggish Cognitive Tempo Scale, we computed correlations between different dimensions of Sluggish Cognitive Tempo Scale with Attention Deficit Subscale of Mental Health Assessment Questionnaire for Children and Adolescents. The results of statistical results showed that this scale has structural validity, criterion and convergence in Iranian society. The results indicate that the scale is three FACTORs and also the validity of the scale using Cronbach's alpha method and retest test after Approved two weeks. According to the findings of the present study, the parent form of the Sluggish Cognitive Tempo Scale (SCTS) has a good validity and reliability and it can be used in research related to slow cognitive multiplication in Iranian society.

Nowadays, the fundamental role of having a purpose for life in physical and mental health has been confirmed. According to victor frankl, presence of a purpose in life gives life a meaning and increases resilience against pains and traumas. The importance of the purpose in life construct reveals the need for a reliable and valid tool to measure it. Crumbaugh and Maholick's purpose in life questionnaire is the first and one of the most applied tools for the assessment of life's purposefulness. The aim of this research is to determine the FACTOR structure of purpose in life questionnaire. The questionnaire was administered on 206 students who were selected through random stratified sampling at Ferdowsi University of Mashhad. Exploratory FACTOR ANALYSIS showed that there are two FACTORs "comprehension" and "purpose" and this finding were confirmed by CONFIRMATORY FACTOR ANALYSIS. Altogether results of this research showed FACTOR validity of the purpose in life questionnaire with a two FACTOR pattern

Although many educational programs aim to promote reflective thinking, there are few instruments for assessment and evaluation of it. The purpose of this study was to investigate psychometric properties of Persian form of Reflective Thinking Scale in order to prepare an applicable instrument for educational research. To do so exploratory and CONFIRMATORY FACTOR analyses were used. A sample consisting of 332 students (176 female, 156 male) was selected from the State Universities of Tehran, using multistage cluster sampling. Results of exploratory FACTOR ANALYSIS by using principal component ANALYSIS, led to four FACTORs, namely habitual action, understanding, reflection, and critical reflective thinking which were similar to the results of research conducted in the primary culture. In order to determine validity and reliability of the scale, respectively CONFIRMATORY FACTOR ANALYSIS and Cronbach’s alpha coefficient were used. Results of CONFIRMATORY FACTOR ANALYSIS showed a good fit to the proposed four-FACTOR structure. More- over, Cronbach’s alpha coefficient indicated that the scale has acceptable reliability. The results of the present study suggest that this scale can be used as a valid and reliable instrument in assessing students’ reflective thinking.

Objective: This study tested the fit of the Teacher's Report Form (TRF) syndrome structure in a sample of non-referred students. Method: This research used some part of the Minaee's study (1384 - 2005) data. 693 male and 588 female students had been randomly selected from primary, secondary and high schools in Tehran. A correlated 8-syndrome model was tested via CONFIRMATORY FACTOR ANALYSIS of the TRF ratings of 1281 students from Tehran.Results: The results supported the fit of the 8-syndrome model for Farsi-Speaking students.Conclusion: Accordingly, we can conclude that FACTOR ANALYSIS of Teacher's Report Form is a reliable instrument to evaluate 8 types of behavioral and emotional disorders in Tehran.