The Fordham Institute just came out with its “research” on reading and writing under Common Core.
No mention of three baseline studies that preceded Common Core.
Stotsky, Goering, Jolliffe study of Arkansas high school English teachers’ assignments
Stotsky, Traffas, Woodworth study of national sample of high school English teachers’ assignments
National Endowment for the Arts, Reading At Risk: A Survey of Literary Reading in America
Pre-Common Core English teachers taught complete literary works—mostly appropriate for high school. Today they don’t teach complete works and we don’t know what they do teach since Fordham didn’t find out.
See also Peter Greene’s insights in Forbes, How Common Core Testing Damaged High School English Classes