Tree Cover, Road Density, and Academic Performance (09-12-18)

Donovan and colleagues investigated how tree cover and road density influence academic performance.  They “examined the association between individual [pupil]-level standardized . . . reading test scores and exposure to the natural environment using data from Portland Public Schools. . .19,459 students attending 90 schools for the reading model. . . . A 1-SDincrease in tree cover within 100 m[eters] of a child’s school was associated with moving from the 50th percentile to the 56th percentile on reading tests. . . . a 1-SDincrease in road density within 100 m of a child’s home was associated with moving from the 50th percentile to the 47th percentile on reading tests. . . . The magnitude of the association we found between tree cover and reading scores is policy relevant.”  “SD” is the abbreviation of “standard deviation;” standard deviations are defined and discussed here: https://en.wikipedia.org/wiki/Standard_deviation

Geoffrey Donovan, Yvonne Michael, Demetrios Gatziolis, and Robert Hoyer. “The Relationship Between the Natural Environment and Individual-Level Academic Performance in Portland, Oregon.” Environment and Behavior, in press, https://doi.org/10.1177/0013916518796885