Surveying Psychometric Features of Persian Version of Morning-Eventide Questionnaire

• Main Authors: A. Rahafar, M. sadeghi jujilee, A. Sadeghpour, SH. Mirzaei
• Format: Article
• Language: fas
• Published: Shahed University 2013-09-01
• Series: روانشناسی بالینی و شخصیت
• Subjects: Morning-eventide questionnaire; Day forms; Day cycle; Validity and reliability.
• Online Access: http://cpap.shahed.ac.ir/browse.php?a_code=A-10-486-1&slc_lang=en&sid=1

It is recognized that day forms (morning, moderate, eventide) are related to many of meta-physiologic, cognitive and conductive variables and therefore there is need to Persian questionnaire for measurement of these body preferences. This research was done aimed at surveying psychometric features of morning-eventide questionnaire (Horne and Ostberg, 1976). This study was conducted on 270 students of Allame Tabatabaie University and Tehran University of Science and Researches and four questionnaires of morning-eventide, Beck depression, Oxford happiness, and general health were used for examination of structure validity (convergent, divergent, and factor structure). Considering the correlations achieved between morning-eventide questionnaire and other three questionnaires, and also main questionnaire factor analysis, structure validity of Persian version of this questionnaire was approved. In addition, appropriate Cronbach Alpha Coefficient (-0.79) was achieved. According to suitable statistical analyses and obtained results, it seems that Persian version of morning-eventide questionnaire has appropriate validity and reliability for measurement of day forms and could be effective tools for this.