1. Department of Educational Sciences, Psychology, Communication, Università degli Studi di Bari, Palazzo Chiaia—Napolitano, Bari, Italy
2. Department of Psychological, Educational, Physical Exercise and Training Sciences, Università degli Studi di Palermo, Palermo, Italy
3. Department of Health Sciences, Università degli Studi di Firenze, Florence, Italy
4. Department of Human Development and Quantitative Methodology, University of Maryland, College Park, MD, USA