An I/O psychologist applies psychological concepts for the workplace. They generally aid companies with:He aha te rereketanga o te waka rererangi me te waka rererangi? Hei whakamaarama ake, ko nga utanga e tohu ana i nga taonga e haria ana e tetahi waka rererangi o waho, a ko te kamupene kawe waka rererangi te kawenga mo te utaina ki runga i to wak