Fausia se sili atu lavelave lomiga o lenei fuaiupu Ina ia mafai ona iloa le mea e taua i le faletusi tagata e faaaogāina, pe faapefea ona faamalieina i latou i auaunaga, o le a punaoa ma le avanoa faaletino o loo latou faaaogaina, faletusi iloiloga faaaogaina metotia suesuega eseese.
O le mea moni, o se lomiga e sili atu ona faigata o le fuaiupu o le "Ina ia iloa ai le mea e taua i le tagata e faaaogāina faletusi, pe faapefea ona faamalieina i latou i auaunaga, o le a punaoa ma le avanoa faaletino o loo latou faaaogaina, faaaogaina iloiloga faletusi a eseese metotia suesuega e pei o Hernon, P. & Calvert, P. J. (1996 )".