At every grade level, schools with more library and library-connected computers—particularly, in the latter case, Internet computers relative to the school’s enrollment—average higher test scores. The presence of more library computers is associated with percentage increases of:
- 8 percent for fifth-and-eighth grade ISAT reading performance
- almost 11 percent for eighth-grade ISAT writing performance
- just over 5 percent for eleventh-grade ACT scores.