نمط الإيقاع الحيوي اليومي (الصباحيين - المسائيين) لدى عينة من طلاب الجامعة في ضوء بعض المتغيرات
The aim of this research is to verify the psychometric characteristics of the daily biorhythm scale (morning - evening) according to the variables of gender, specialization and achievement percentage of undergraduate students in the city of Aleppo in the Arab Republic. Theoretical and 50 students from applied colleges, the sample consisted of (43) males and (57) females, their ages ranged between (19-25) years, with an arithmetic mean (21.8) and a standard deviation (0.643), and the daily daily rhythm scale (morning) was used Evening) prepared by Terman et al. (2001), and the general estimate of the total academic materials obtained by each member of the sample for the year 2022-2023. And the results of the research showed: 1) That there are statistically significant differences in the rhythm pattern and the default average, which means that the rhythm pattern is higher than the average among the sample. 2) There were no statistically significant differences in the average rhythm pattern according to the specialty variable and rate variable. 3) There were statistically significant differences in the average rhythm pattern according to the gender variable in favor of males. (Published abstract)