The term sociometry relates to its Latin etymology, "socius" meaning companion, and "metrum" meaning measure. Jacob Moreno defined sociometry as "the inquiry into the evolution and organization of groups and the position of individuals within them." He goes on to write "As the ...science of group organization, it attacks the problem not from the outer structure of the group, the group surface, but from the inner structure". "Sociometric explorations reveal the hidden structures that give a group its form: the alliances, the subgroups, the hidden beliefs, the forbidden agendas, the ideological agreements, the "stars" of the show."