SchoolScope vs. GreatSchools
GreatSchools is the most widely used school rating tool in America. Here's an honest look at what they do well, where we think we go deeper, and what we're still missing.
What GreatSchools does well
We respect what GreatSchools has built. They're a nonprofit with a genuine mission, and they've earned their position for real reasons:
- Massive reach. Embedded in Zillow, Realtor.com, and other home-buying tools. Parents see school ratings while house-hunting — that's powerful and convenient.
- Equity-focused methodology. They adjust for demographics and measure whether schools serve all students, not just top performers. Their equity rating is something we don't yet offer.
- Parent reviews and community feedback. Qualitative data from actual families — things test scores can't capture, like teacher quality and school culture.
- All 50 states. GreatSchools covers the entire country. We're California only, for now.
- Student progress rating. On some schools, they show a growth metric. It's not on every school, but they're working on it.
- Free and nonprofit. Their mission is genuinely about helping families.
Where we go deeper
GreatSchools gives you a single number from 1 to 10. That number has to carry a lot of weight — and we think it hides too much.
| What we measure | SchoolScope | GreatSchools |
|---|---|---|
| Exceeded vs. Met split | Separate metrics — the difference between a school where 60% exceed standard and one where 10% do | Not surfaced as separate metrics in their public-facing scores |
| Grade-to-grade growth | Grade 3 vs. Grade 5 proficiency comparison shows if a school adds value | Student progress rating on some schools, but not consistently available |
| Chronic absenteeism | Weighted into the Scope Score — schools with high absenteeism rank lower | Not visibly factored into the public 1–10 rating |
| Suspension rates | Weighted into the Scope Score — signals school discipline philosophy | Not visibly factored into the public 1–10 rating |
| Income correlation | We show you raw performance data. A high score means high performance, full stop. | The 1–10 rating has been observed to correlate with neighborhood income — a pattern noted in analyses by Chalkbeat and academic researchers, and acknowledged by GreatSchools themselves |
| Methodology transparency | Fully published — every weight, every formula, every data source | Published at a high level, but the specifics can be opaque |
What we're still missing
- California only — GreatSchools covers all 50 states. We cover one.
- No parent reviews — we have no qualitative data from families, students, or teachers.
- No private schools — we only analyze public school test data.
- No equity adjustments — we don't adjust for demographics. GreatSchools does this thoughtfully.
- No facilities, programs, or athletics data.
- We're new — less established, no historical trend data yet.
- Test scores don't capture everything about what makes a school great.
The honest verdict
GreatSchools is a good starting point. It gives you a quick read on nearly any school in America, and its equity lens adds real value.
SchoolScope goes deeper on California academics. If you want to understand whether a school is actually pushing kids to exceed — not just meet — standards, and you want absenteeism and suspension data factored in, that's what we built.
Our suggestion: Use both. Start with GreatSchools for the broad picture and parent reviews. Then come to SchoolScope to see the data GreatSchools condenses into a single number.
See the data for yourself
Search any California elementary school and see what a 6-dimension Scope Score analysis reveals.
Explore schools →