Many EA authors had career experience in the compulsory educational system, an
occupational history similar to that of many of the first EA professors (Campbell and
Newell, 1973). In total, 28 had been schoolteachers, 11 were school principals, and many
took on middle management roles in schools (e.g. coordinator, department head,
program director), as well as support staff roles (e.g. counselling, school psychology).