“…Lieberman (1977) proposed a model linking playfulness, composed of the five aforementioned elements, with creativity and imagination. Other correlates of playfulness that have been found include divergent thinking (Barnett & Kleiber, 1982;Lieberman, 1965), positive affect (Barnett, 1991a;Jenvey & Jenvey, 2002), problem-solving ability (Barnett, 1985;Vandenberg, 1980), physical activity (Barnett, 1991a;Brockman, Jago, & Fox, 2011), emotional and self regulation (Christiano & Russ, 1996;Elias & Berk, 2002), and imagination (Barnett 1991a;Lieberman, 1977;Singer, Singer, & Sherrod, 1980), among others (see Barnett, 2011Barnett, -2012. Lieberman (1965) and Barnett and Kleiber (1982) both found relationships between playfulness and divergent thinking ability among kindergarten and preschool children in similarly designed studies.…”