Why Test Scores Tell Only Half the Story
Walk into any school, and within minutes you feel something. It might be the quiet hum of focused energy in a hallway, the easy laughter between students and staff, or the subtle tension that makes you lower your voice without thinking. This is school culture—the invisible web of relationships, beliefs, and habits that shapes every moment of a school day. Yet when we talk about whether a school is “good,” we almost always reach for test scores first.
I have spent over two decades in education, first as a classroom teacher and later as a principal and researcher. I have seen schools with modest test results that were places of profound growth, and schools with stellar numbers where students counted the minutes until dismissal. The numbers matter, but they are a narrow window into a vast room. If we want to understand what truly makes a school thrive, we need a richer framework—one that honors the human experience at the center of learning.
This article offers exactly that: a practical, research-grounded way to see and describe school culture. It is not a checklist or a rating system. It is a lens, built from the daily realities of educators and students, that can help parents, teachers, and leaders ask better questions and make wiser decisions.

The Three Layers of School Culture
Drawing on organizational psychology and my own observations, I think of school culture as having three interconnected layers. Each one influences the others, and none can be understood in isolation.
1. The Visible Layer: Artifacts and Routines
This is what you notice first. Student work on the walls, the condition of the bathrooms, how adults greet visitors, the rhythm of passing periods. These are the tangible expressions of a school’s values. A school that genuinely prizes student voice will display messy drafts alongside polished final pieces. A school that values belonging will have signs in multiple languages and photos that reflect every family. The visible layer is not superficial—it is the physical translation of what a community believes.
But artifacts alone can mislead. A gleaming trophy case might signal pride, or it might be a relic of a past principal’s priorities that no one feels connected to anymore. The key is to ask: Who created this? Who maintains it? What story does it tell about power and participation here?
2. The Spoken Layer: Shared Language and Narratives
Listen to how people talk. In some schools, you hear “our kids” and “we” constantly. In others, it is “these students” and “the administration.” The pronouns are a map of belonging. Pay attention to the stories that get repeated—the legendary science fair project, the teacher who stayed late to help a struggling reader, the time the community rallied after a fire. These narratives carry the school’s identity forward. They tell newcomers what is honored here and what is possible.
Equally revealing is what goes unsaid. Are there topics that make conversations stall? Are certain student groups discussed only in deficit terms? The spoken layer includes both the public language of mission statements and the private language of the faculty lounge. Alignment between the two is a powerful indicator of trust.
3. The Deep Layer: Underlying Assumptions
This is the hardest to see and the most important. It consists of the taken-for-granted beliefs that drive behavior without anyone questioning them. In one school, the assumption might be “all students can learn at high levels, given the right support.” In another, it might be “some kids just aren’t cut out for advanced work.” These beliefs are rarely stated outright, but they shape everything: who gets encouraged, how mistakes are handled, whether teachers collaborate or close their doors.
Uncovering the deep layer requires time and careful observation. You watch what happens when a student fails a test. You notice which colleagues are sought out for advice. You listen to how staff describe their most challenging students. The deep layer is the soil from which everything else grows.

Five Dimensions to Guide Your Observation
To make the three layers more concrete, I have developed five dimensions that can be observed in any school setting. These are not meant to be scored; they are meant to focus your attention on what matters most.
1. Relational Trust
Trust is the lubricant of school improvement. When teachers trust their principal, they take risks in the classroom. When students trust their teachers, they admit confusion and ask for help. When families trust the school, they partner rather than challenge. Look for evidence of trust in the way meetings are run, in the tone of parent-teacher conferences, in whether students linger after class to talk. High-trust schools feel safe, even when conversations are difficult.
2. Academic Ambition
Ambition is not the same as pressure. A school with healthy academic ambition sets high expectations and provides the scaffolding to reach them. Students describe being challenged, not crushed. Teachers talk about curriculum as a living thing they shape, not a script they follow. You can see ambition in the questions students ask—are they curious, or just hunting for points? You can hear it in how teachers discuss professional development—as an opportunity or an imposition.
3. Collective Efficacy
This is the shared belief that the staff, together, can make a difference for every student. It is one of the most powerful predictors of student achievement, yet it has nothing to do with test prep. Schools with high collective efficacy feel energetic. Problems are met with “how might we?” rather than “here we go again.” You can sense it in the way a grade-level team talks about a struggling cohort—as a challenge to solve, not a burden to endure.
4. Inclusive Belonging
Belonging goes beyond tolerance or diversity statistics. It is the felt experience that every student is a full member of the school community. Look for who is represented in leadership roles, in advanced courses, in the photos on the wall. Listen for how students describe their friendships across difference. Notice whether the school acknowledges cultural holidays beyond the dominant calendar. Belonging is not a program; it is a pattern of daily affirmation.
5. Reflective Practice
Schools that improve over time are schools that look at themselves honestly. This dimension captures the habit of examining data beyond test scores—attendance patterns, discipline referrals, student surveys—and asking hard questions about what the numbers reveal. It also includes the willingness of individual teachers to examine their own practice. In a reflective school, you hear phrases like “I tried something new and it didn’t work, so I adjusted.” Vulnerability is modeled from the top.

Putting the Framework to Work
This framework is useful for different audiences in different ways. For a parent choosing a school, it offers questions to ask during a tour that go deeper than “what is your average SAT score?” For a teacher considering a new position, it provides a way to assess whether a school’s stated values match its lived reality. For a school leader, it is a diagnostic tool to identify strengths and growth areas without relying solely on quantitative data.
Here are some questions you might ask, organized by dimension:
- Relational Trust: “How do teachers here support each other when a lesson doesn’t go well?” “Can you tell me about a time a student gave honest feedback to a teacher?”
- Academic Ambition: “What happens when a student consistently exceeds expectations?” “How do you decide which texts to teach?”
- Collective Efficacy: “How does your team respond when a group of students is struggling?” “What is a recent success the whole staff feels proud of?”
- Inclusive Belonging: “How are student voices included in school decisions?” “What traditions here make every family feel welcome?”
- Reflective Practice: “What data do you look at beyond test scores?” “How do you share and discuss mistakes as a staff?”
Notice that none of these questions have a single right answer. They are designed to open a conversation and reveal the thinking behind the practices. A school with a strong culture will welcome these questions; a school with a weak culture will deflect them or offer rehearsed slogans.
Why Culture Deserves Our Primary Attention
Research consistently shows that school culture is a leading indicator of student outcomes, not a lagging one. When culture improves, achievement tends to follow—not the other way around. A 2018 study in the Journal of Educational Administration found that schools with strong collaborative cultures saw gains in both math and reading over time, even when controlling for demographics. The mechanism is straightforward: in a healthy culture, teachers stay longer, collaborate more, and take greater instructional risks. Students feel safer, attend more regularly, and engage more deeply.
Yet our policy conversations remain fixated on test scores. We rank schools by them, reward and punish by them, and often reduce complex communities to a single number. This is not just incomplete—it is harmful. It pressures schools to narrow their curriculum, ignore the arts and social-emotional learning, and focus resources on students who are just below the proficiency cutoff. It also demoralizes educators working in high-poverty schools, where test scores may reflect systemic inequities more than instructional quality.
I am not arguing that we should ignore test scores. They provide useful information about academic progress. But they should be one data point among many, and they should always be interpreted within the context of a school’s culture. A dip in scores at a school with strong collective efficacy and reflective practice is a problem to solve. The same dip at a school with low trust and a blame-oriented culture is a crisis that can spiral.
Stories from the Field
Let me share two brief examples, with names and details changed to protect privacy.
School A had test scores in the top quartile of the state. The hallways were quiet, the walls were covered with motivational posters, and the principal’s newsletter boasted about “excellence” in every issue. But when I spent time in classrooms, I saw students who avoided eye contact with teachers, who whispered anxiously about grades, and who described cheating as “just what you do to survive.” The deep assumption was that performance mattered more than learning. Teachers felt pressure to cover content quickly, and students who needed extra time were quietly resented. The culture was brittle—high-performing but fragile.
School B served a similar demographic but had average test scores. The building was older, the displays were handmade, and the principal greeted every student by name at the door. In classrooms, I saw students arguing passionately about a science experiment, teachers admitting when they didn’t know an answer, and older students mentoring younger ones during lunch. The deep assumption was that everyone belonged and everyone could grow. Teachers met weekly to examine student work and adjust instruction. The culture was resilient—and over three years, their scores rose steadily while School A’s plateaued.
These stories illustrate why culture cannot be reduced to a number. It is a living system, and it requires a different kind of attention.
How to Begin Seeing Culture in Your Own School
If you are an educator or a parent, you can start applying this framework tomorrow. Here is a simple process:
- Spend ten minutes in a common space. Sit in the cafeteria, the library, or near the main office. Just watch and listen. What do you notice about how people interact? Who speaks? Who is silent? What is the emotional tone?
- Walk the building with a question. Choose one dimension—say, inclusive belonging—and look for evidence. Are there signs that every student sees themselves in the school’s story? What is missing?
- Ask three people the same open-ended question. For example, “What is the best thing about this school?” or “What would you change if you could?” Listen not just to the content but to the ease or hesitation in their response.
- Reflect on the gap between stated and lived values. Read the school’s mission statement. Then compare it to what you observed. Where do they align? Where do they diverge? The gaps are often the most instructive.
This is not an evaluation. It is a practice of paying attention. Over time, it sharpens your ability to see the invisible patterns that shape a school’s life.
Frequently Asked Questions
Can a school have a strong culture but low test scores?
Yes, and this is more common than many people realize. Schools serving communities with high poverty, trauma, or mobility often face challenges that depress test scores regardless of culture. A strong culture in such a school might manifest as high attendance, low staff turnover, and steady growth on internal assessments—even if state test scores remain below average. The culture is the foundation; scores can improve over time if the foundation is solid.
How long does it take to change a school’s culture?
Meaningful culture change is typically measured in years, not months. The deep layer of assumptions is especially slow to shift because it is built from years of accumulated experience. However, visible and spoken layers can show improvement within a single school year if leadership is consistent and trust is actively cultivated. Quick wins—like revising a disrespectful policy or celebrating a previously overlooked student group—can build momentum for deeper change.
What is the biggest barrier to a healthy school culture?
In my experience, the most common barrier is a lack of psychological safety among adults. When teachers fear judgment from administrators or colleagues, they hide their struggles, avoid collaboration, and resist new ideas. This fear trickles down to students, who learn to protect themselves rather than engage fully. Addressing adult culture is often the first and hardest step in any school improvement effort.
How can parents contribute to a positive school culture?
Parents are co-creators of culture, not just consumers. Simple actions matter: expressing appreciation to teachers, volunteering in ways that build relationships rather than just completing tasks, asking your child about their sense of belonging, and approaching concerns with curiosity rather than accusation. When parents model collaboration and respect, they reinforce the very culture they want for their children.
A Closing Invitation
School culture is not a mystery, but it is also not a metric. It is a human creation, woven daily through thousands of small interactions. To see it clearly, we need to slow down, ask different questions, and resist the urge to reduce complexity to a ranking. The framework I have shared here is a starting point—a way to begin noticing what has always been there, waiting to be recognized.
I invite you to try it. Walk into a school this week and look for the three layers. Listen for the five dimensions. You may be surprised by what you find. And you may never look at a test score the same way again.














