Shiva Zarezadeh Kheibari; Seyed Amir Amin Yazdi; Shahrbanoo Aali; Hossein kareshki
Abstract
The visuospatial development is one of the most important foundations of development, since it plays the role of the primary function of all learning and communication, and forms the mental representations of the outside world. On the other hand, this development simultaneously contains spatial information ...
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The visuospatial development is one of the most important foundations of development, since it plays the role of the primary function of all learning and communication, and forms the mental representations of the outside world. On the other hand, this development simultaneously contains spatial information and directs all movements in space. Measurement of this development and its various dimensions is vital in the early years of life, since with this information we can estimate the visuospatial capacity of the child and examine the change of this basic capacity during life span. The aim of the present study was to provide psychometric properties for the visuospatial development questionnaire (Harry Wachs, 2014) for use in Iran. A questionnaire was filled out on 348 preschool children in Mashhad that were selected randomly by multistage stratified sampling method and psychometric indices were calculated using statistical software. The findings showed that the questionnaire had a satisfactory content and structure validity and also reliability. The results of the confirmatory factor analysis also showed that the structure of the questionnaire has an acceptable fit with the data. These factors were named in accordance with the main research, body awareness and sense; location of body in space; relation of object to self, other objects and people; conservation of space; Visual-logical reasoning; Representational thought; their coefficients of internal consistency were 0.83, 0.79, 0.67, 0.80, 0.72 and 0.61, respectively. These results show that the Visuopatial development Questionnaire can be used as a tool for measuring the concept of the visuospatial development in Iran.
Mohammad Azad Abdollahpour; fariborz dortaj
Abstract
The main purpose of the present study was to investigate psychometric properties of the achievement emotion questionnaire-short form among Iranian university students.317 university students (141 male and 176 female) completed the Achievement Emotion questionnaire-Short Form, the Stress Appraisal Measure-Revised, ...
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The main purpose of the present study was to investigate psychometric properties of the achievement emotion questionnaire-short form among Iranian university students.317 university students (141 male and 176 female) completed the Achievement Emotion questionnaire-Short Form, the Stress Appraisal Measure-Revised, and Achievement Goal Questionnaire-Revised. First, ‘alpha if item deleted’ and ‘corrected item-total correlation’ commands were used to develop the short form of the achievement emotion questionnaire. Also, the confirmatory factor analysis and internal consistency were used to compute the Achievement Emotion questionnaire-Short Form factorial validity and reliability, respectively. Then, in order to examine the construct validity of the Achievement Emotion questionnaire-Short Form, we compute correlation between different dimensions of Achievement Emotion questionnaire-Short Form with cognitive appraisal processes and achievement goal orientations. the results of confirmatory factor analysis according to comprehensive version of Achievement Emotion questionnaire by emphasizing the breakdown of positive and negative achievement emotions indicated that Achievement Emotion questionnaire-Short Form had internal consistency. Furthermore, Correlational analyses between positive and negative achievement emotions with cognitive appraisals and goal orientations provided initial evidence for the AEQ-SF convergent validity. Internal consistency for the multiple scales in different achievement situations was 0/74 to 087. In sum, on the one hand, the results provide further support for the control-value theory of achievement emotions and on the other hand, these findings provide evidence for the validity and reliability of the Achievement Emotion questionnaire-Short Form as an instrument to measure of achievement emotions among Iranian university students.
Mohammad Hossein Sanaeepur; Zahra Royaei; Zahra Gharetappeyei
Abstract
Aim: The main purpose of the present study was to investigate psychometric properties of the Emotional adjustment Measure (EAM, Rubio, Aguado, Hontangas& Hernandez, 2007) among Iranian university students. Methods: 324 university students (130 male, 194 female) completed the EAM, the Perceived Stress ...
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Aim: The main purpose of the present study was to investigate psychometric properties of the Emotional adjustment Measure (EAM, Rubio, Aguado, Hontangas& Hernandez, 2007) among Iranian university students. Methods: 324 university students (130 male, 194 female) completed the EAM, the Perceived Stress Reactivity Scale (PSRS, Schlotz, Yim, Zoccola, Jansen & Schulz, 2011) and the Health-Promoting Lifestyle Profile-II (HPLP-II, Walker, Sechrist& Pender, 1995). The confirmatory factor analysis method and internal consistency were used to compute the EAM's construct validity and reliability, respectively. Also, in order to examine the construct validity of the EAM, we computed correlations between different dimensions of EAM with different dimension of Perceived Stress Reactivity Scale and Health-Promoting Lifestyle Profile-II. Results: The results of confirmatory factor analysis indicated that 2-factor structure of the EAM consisted lack of physiologic and emotional arousal regulation factor and hopelessness and wishful thinking factor had good fit to data in the Iranian sample. Also, correlational analyses between different dimensions of EAM with different dimension of Perceived Stress Reactivity Scale and Health-Promoting Lifestyle Profile-II provided initial evidence for the EAM construct validity. Cronbach’s α coefficients ranged from 0/84 to 0/91 for total factor and its dimensions. Discussion: In sum, these findings provide evidence for the validity and reliability of the EAM as an instrument to measure of emotional adjustment among Iranian university students.
Ali Delavar
Abstract
Aim:The Aim of this research was studding the psychometric properties of self-handicapping scale as a suitable tool for measuring the self-handicapping.Method:The population was all of Tehran’s university students that 520 people were selected as a sample from the universities of AllamehTabataba’i, ...
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Aim:The Aim of this research was studding the psychometric properties of self-handicapping scale as a suitable tool for measuring the self-handicapping.Method:The population was all of Tehran’s university students that 520 people were selected as a sample from the universities of AllamehTabataba’i, Tehran, south branch of Payam-e-Noor & south branch of Islamic Azad University in various fields through purposive sampling. The research tool wasself-handicapping scale (Jones, &Rhodewalt 1982).For studding the psychometric properties of self-handicapping was determined the content validity, construct validity and reliability of this scale.Results:The content validity of this scale was confirmed by 5specialists. In exploratory factor analyze supported three factor solution. Confirmatory factor analysis results indicated that the three-factor model fit the data. Internal consistency of the factors and scale was quite high and also item analysis showed high internal consistency between the items and scale. The reliability of scale was obtained 0.918 using the Cronbach'salpha method and 0.767 using the spilt-half method. Conclusion:Self-handicapping scale has good psychometric properties for college Students. Reliability of this scale was very high and Three-factor model proposed in the research has good construct validity and Helps researchers that can using this instrument for measuring the self-handicapping in the college students.
Jalil Younesi
Abstract
هدف پژوهش حاضر ، سنجش روایی و پایایی مقیاس رضایت از کیفیت خدمات سفرهای هوایی در کل کشور بود. جامعه آماری پژوهش، کلیه مسافران خطوط هوایی داخلی در کل کشور بودند. با استفاده ...
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هدف پژوهش حاضر ، سنجش روایی و پایایی مقیاس رضایت از کیفیت خدمات سفرهای هوایی در کل کشور بود. جامعه آماری پژوهش، کلیه مسافران خطوط هوایی داخلی در کل کشور بودند. با استفاده از روش نمونهگیری خوشهای چندمرحلهای از میان فرودگاههای کشور، چهار فرودگاه (مهرآباد تهران، اصفهان، شیراز و مشهد) به شیوۀ هدفمند و 20 زوج شهر بر اساس میزان تعدد پروازها و حجم مسافر جابجا شده انتخاب شد. اجرای مقدماتی و نهایی در بازه زمانی تابستان و اوایل پاییز سال 1389 بوده و تعداد 2194 پرسشنامه معتبر تکمیل شده است. پرسشنامه اولیه (60 سؤالی) بر اساس 5 عامل مدل سروکوال (عوامل فیزیکی، پاسخگو بودن، همدلی، اطمینان خاطر و قابلیت اعتماد) تدوین شد؛ پس از اجرای مقدماتی و با استفاده از نرمافزارهای تحلیل سؤال (Multilog و Statistica) در رویکرد IRT و نتایج تحلیل عاملی تأییدی مرتبه اول و دوم، دادهها تحلیل و ابزار اندازهگیری رضایت از کیفیت خدمات سفرهای هوایی رواسازی شد.
akbar rezaee
Volume 1, Issue 1 , October 2010, , Pages 1-16
Abstract
The Schommer’s epistemological beliefs questionnaire is regularly used in studies on epistemological beliefs. However, many researchers pose some questions about the appropriateness of this instrument. The present study has been taken with the goal of investigating the reliability and factor structure ...
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The Schommer’s epistemological beliefs questionnaire is regularly used in studies on epistemological beliefs. However, many researchers pose some questions about the appropriateness of this instrument. The present study has been taken with the goal of investigating the reliability and factor structure of schommer’s epistemological beliefs questionnaire (1990). To do this, the questionnaire was translated into Persian (Farsi). Then, it was retranslated into English and compared with the original version to find and correct the gaps between the translated version and the original version. After the pilot study and resolving the possible mistakes, the final questionnaire was implemented for sample group consisting of 518 students studying in different fields in Tabriz Payame Noor University (302 students from humanities and 216 students from basic sciences).Cronbach Alpha calculation showed that none of reliability coefficients of sub-scales are acceptable. So, factor analysis was applied in this study to examine the construct validity and to reach an optimal factor structure. Before factor analysis of data, internal consistency was calculated for 63 questions. 27 questions due to under .10 and negative correlation between item-total score test were deleted from subsequent analyses. Using Principal Component's method, factor analysis was performed on 36 remaining questions. Investigatng of Scree plot of primary analysis showed two-factor solution. In order to achieve a two-factor structure, the analysis of Principal Components was done using Promax rotation method. 20 questions, due to factor load below .35 or due to meaningful and equal load on more than one factor in several rotations was deleted. Final analysis showed loading of the remained 16 questions on two factors. These factors were nominated according to content of the questions covered by simple/absolute knowledge and fast/fixed learning.Calculation of Cronbach Alpha coefficient showed that the reliability of two obtained factors is acceptable