Measurable: Goals should be measurable so that you have tangible evidence that you have accomplished the goal. Usually, the entire goal statement is a measure for the project, but there are usually several short-term or smaller measurements built into the goal.
[Human Resources at University of Virginia. "Writing S.M.A.R.T. Goals." PDF file.]
ALA Advocacy University. "School Library Snapshot." Advocacy University School Library Resources, American Library Association, n.d. A useful tool from ALA/AASL to make it easy for schools to post useful data about student use of library resources. It includes a Tracking Tool and a downloadable PDF that's easy to use.
Adkins, Denice. "U.S. Students, Poverty, and School Libraries: What Results of the 2009 Programme for International Student Assessment Tell Us." School Library Research, vol. 17, 2014, pp. 1-26. Education Resources Information Center.
Hall, Debbie, and Mary Chance. "Libraries in HISD." PDF. Feb. 2016.
Hand, Dorcas, and Debbie Hall. "HISD Needs Strong Libraries in HISD." Students need Libraries in HISD, Jan. 2016. Provides maps of the nine school board districts in Houston Independent School District to show how far it is for students in schools without libraries to get to another source of books, whether that source be a book store (B&N) or a public library branch.
Library Research Service. "School Libraries Impact Studies." School Library Research Service. Research reports and data about libraries from around the country.
Moreillon, Judi. "Leadership: School Librarian Evaluation." School Library Monthly, vol. 30, no. 2, Nov. 2013, pp. 24-25.
New York Library Association-SSL, and School Library System Association of New York State. "New York Library Association Rubric." Chart.
University of Pittsburgh, and Pennsylvania Association of School Librarians. "The School Librarian’s Guide to Success in the PA Department of Education Educator Effectiveness System: Using The Model Curriculum for PA School Library Programs as a Foundation." PSLA.org, Pennsylvania Library Association, 4 Jan. 2016.
Valenza, Joyce. "Evolving with Evidence: Leveraging New Tools for EBP." Knowledge Quest, Jan.-Feb. 2015, pp. 36-43. ."Just like other educators, school librarians must demonstrate evidence-based practice in their school library programs. This issue of Knowledge Quest investigates evidence-based practice and how school librarians can measure their effect on student learning objectives."
Slides developed from Joyce Valenza's article cited above: