SOMETIMES, THE VALUE OF A STUDY IS IN REINFORCING WHAT SHOULD BE OBVIOUS.

Consider a recent offering by Joanne Jacobs.  "Young people have a brighter future if they attend a high school that supports social well-being and good work habits, concludes a study by Northwestern’s C. Kirabo Jackson of Northwestern and colleagues."  Everything else is elaboration, although that recommendation is still too often ignored or disrespected.