“…Carlo, August, McLaughlin, Snow, Dressler, Lippman, Lively, and White (2004), for example, argued that "gaining access to the information taught in middle and secondary content area classes requires all students exit elementary school with good reading comprehension," and therefore "closing this gap has a high priority if the U.S. education system is to fulfill its goad of reducing inequalities" (p. 188, 190, emphasis added). Lawrence, Rolland, Branum-Martin, and Snow (2014) claimed that "without proper intervention, lower-skilled students are likely to fall further behind their more skilled peers in academic domains" (p. 77, emphasis added). Faw and Waller (1976) noted that despite the presumed goal of efficiency, most educational intervention studies lack any study or instructional time variable in their analyses.…”