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Önder, Ismail; Masal, Ercan; Demirhan, Eda; Horzum, Mehmet Baris; Besoluk, Senol – International Journal of Psychology and Educational Studies, 2016
Sleep is a physiological need that affects physical and mental performances. However, the number of individuals who experience problems directly or indirectly related to sleep is increasing in various countries. Therefore, it is important to have a short, reliable and valid measure to assess both sleep quality and sleep related variables in…
Descriptors: Foreign Countries, Psychometrics, Measures (Individuals), Questionnaires