Beck, Isabel L., Margaret G. McKeown, and Jo Worthy. “Giving a Text Voice Can Improve Students’ Understanding.” Reading Research Quarterly 30(2) (1995): 220-38. http://www.reading.org/general/Publications/Journals/RRQ.aspx
Examines effects on recall and comprehension of a passage from a fourth-grade textbook and versions revised for greater coherence or to exhibit voice. Finds that, immediately after reading, the voiced coherent passage held significant advantage over all other passages in both recall and comprehension. Finds similar, though statistically insignificant, results after a delay.