During the last 12 years we have investigated more than 150 students from lower and upper secondary (11 - 18 years old) (e.g., v. Aufschnaiter 2006a,b; v. Aufschnaiter & v. Aufschnaiter, 2003a) and from university level (typically about 21 years old) (e.g., v. Aufschnaiter & v. Aufschnaiter, 2007).