Key points are not available for this paper at this time.
Donald J. Richgels, Lea M. McGee, Richard G. Lomax, Catherine Sheard, Awareness of Four Text Structures: Effects on Recall of Expository Text, Reading Research Quarterly, Vol. 22, No. 2 (Spring, 1987), pp. 177-196
Richgels et al. (Thu,) studied this question.