Morgan miwah Sorensen (1999) nungkasin Coleman ngenenin indik penampen ipun, ngenenin indik sisya sekolah Katolik kewagedannyane becikan saking sisya sekolah umum rikala kawentenan tes tur molihang jayanti.
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.