1. Department of Psychology, Stanford University, Stanford, CA, USA
2. Sleep Disorders Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
3. Department of Clinical Psychology, Kermanshah University of Medical Sciences, Kermanshah, Iran
4. Department of Education and Psychology, Shahid Ashrafi Esfahani University, Esfahan, Iran
5. Department of Kinesiology and Nutrition, University of Illinois at Chicago, Chicago, IL, USA