Methodology: RI's Top High Schools 2015

GoLocalProv News Team

Methodology: RI's Top High Schools 2015

GoLocalProv's Top High Schools in Rhode Island 2015 ranking is based on the gathering of thousands of pieces of data that directly reflect school quality: reading, math, and writing test scores (both the New England Common Assessment Program, or NECAP, scores, as well as SATs), student-teacher ratios, spending per pupil, and graduation rates for 51 public, charter, and technical schools in the state. (Note: Block Island High School is not included in GoLocal's ranking because its sample size makes fair analysis impossible).

GoLocal used data from the Rhode Island Department of Education's public databases; the analysis reflects the most current data on this site as of July 2015. 

Process and Weighting Formulas

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What followed was precise statistical analysis, guided by a methodology used in similar rankings guided by a formula devised by Babson College. After collecting the relevant data, we calculated the average values in each of the categories and the degree to which each school either exceeded or failed to reach those averages.

Those deviations from the average were standardized so that different categories could be compared meaningfully, and then we used a weighting formula to give certain categories more importance than others. We wanted, for example, a school’s student-teacher ratio to matter more in our ranking than its Math SAT scores – though test scores all together account for 60% of the weighting.

Unlike previous year’s rankings, the 2015 ranking weighted spending per pupil at 10% (weighted at 15% in 2014) and 4-year graduation rate at 15% (weighted at 10% in 2014). This shift was done to make the results more closely tied to academic performance rather than budgetary increases.

The weightings for calculations were as follows:

Student/Teacher Ratio 15%
Per Pupil Spending 10%
NECAP-English 10%
NECAP-Math 10%
NECAP-Science 10%
SAT-Verbal 10%
SAT-Math 10%
SAT-Writing 10%
Graduation Rate 15%

Each school’s weighted numbers were added into a single evaluative number, which, when ordered from highest to lowest, yields the ranking.

Note: NECAP testing for English, and Math was last administered in 2013, and they have since been replaced with Partnership for Assessment of Readiness for College and Careers, or PARCC. The comprehensive high school rankings were done before the PARCC results had published, thus the most recent NECAP results for English and Math were used. 

 


Top High Schools in Rhode Island 2015

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