Morgan and Sorensen (1999) directly challenge Coleman for his lacking of an explicit mechanism to explain why Catholic schools students perform better than public school students on standardised tests of achievement.
Morgan d Sorensen (1999) ijjan yataxad i Coleman fal awa s indar immik ilan almaɣna n asigham n mafal attalaba tan win lookl tan tin katolik tan ornan win lakkol tan tin alxakum daɣ igazmit tan