Research Shows... | National Education Policy Center: "When veteran Sun-Times reporter Ros Rossi followed up on the parents' investigation she uncovered even more research deception. She called the author of one analysis of 15 studies cited by CPS as proof that longer school days work. Erika Patall of the University of Texas said the evidence the studies cited was “weak’’ and their conclusions were “very tentative” because “a good deal of the research does not rule out something other than time causing the improvement.’’
Parents also questioned CPS contentions that the system needed a 7.5 hour school day to get “on par with other districts.’’ CPS officials have said their numbers were based on weekly instructional minutes in a National Center for Education Statistics chart, multiplied out annually.
But an author of the NCES report told the Sun-Times that the chart was based on weekly teacher minutes, not student minutes, of instruction. Plus, the NCES researcher said, every district counts school days differently, so NCES would never extrapolate student instructional minutes in a year from one week’s worth of teacher instructional minutes."
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