The “F” Word in Education: Rethinking Fidelity for Real Change

If you’ve worked in schools for any length of time, you’ve almost certainly heard the phrase “implement with fidelity.” It shows up in curriculum trainings, district improvement plans, and coaching conversations. On paper, it sounds reasonable—even responsible. If a program or practice is backed by research, shouldn’t we use it the way it was designed?

And yet, for many teachers, that word—fidelity—lands with a thud.

Marisa Ramirez Stukey, P.hD., chief academic officer of The Reading League, named this tension candidly during a recent conversation with Kerri Larkin on the ALL FOR LITERACYⓇ podcast. She shared what so many educators quietly feel when the word fidelity comes up: “Honestly, I feel like a lot of teachers, classroom teachers, are like, ‘if you tell me one more time to implement with fidelity, I'm going to lose it.’” She went on to explain why the reaction is so strong. “It’s because fidelity often equals rigidity. Fidelity often equals, to a teacher, ‘don’t think, just do.’ And that’s not actually what fidelity is—but that is often how it’s been implemented.”

That disconnect is at the heart of the issue. Teachers are not resisting evidence-based practice. They are resisting a version of fidelity that feels dehumanizing, unrealistic, and disconnected from the daily work of teaching real students in real classrooms.

When Fidelity Becomes a Burden Instead of a Support

In its truest sense, fidelity is about preserving the essential components of a practice so it has the best chance of working. But in many schools, fidelity has been reduced to compliance: pacing guides that don’t flex, scripts that leave no room for responsiveness, and walkthroughs that focus more on adherence than impact.

What often gets overlooked is that teachers don’t work in controlled research environments. They work in complex systems—systems that can either support or sabotage implementation.

As Dr. Stukey points out, “The majority of the barriers are at a systems level and are outside of the locus of control of the individual educator.” Teachers are asked to implement new programs while navigating limited instructional time, competing initiatives, staffing shortages, misaligned assessments, and inconsistent access to materials. When those realities are ignored, fidelity becomes less about quality and more about survival.

Shifting the Conversation: From Fidelity to Integrity

Rather than doubling down on a word that has become fraught, Dr. Stukey suggests a powerful shift in both language and mindset. She explains that she has been “really thinking about kind of shifting the word fidelity to integrity.” The distinction matters. When teachers understand “the design of a program, the reason why it is set up the way that it is, [and] what is necessary for the program to be successful with students,” the work changes. At that point, she argues, “it’s not about fidelity necessarily—blind fidelity. It’s more about, ‘Am I implementing this with integrity?’”

Integrity honors teacher expertise. It assumes that educators are thinking professionals who can hold onto what matters most while making thoughtful adjustments based on their students and context. It values understanding over obedience and purpose over compliance.

Why Knowledge Alone Isn’t Enough

This conversation also underscores why implementation science has become such an important part of literacy and instructional reform. For years, education has focused heavily on what we know—what the research says, what practices are effective, what programs are evidence-based. But knowing is not the same as doing.

As Dr. Stukey puts it plainly, “Knowledge isn’t enough. Knowledge is our basis, but it isn’t enough.” What really matters is what happens next—“what happens when the knowledge meets the student, and what happens in that interaction between the teacher, her students, [and] the materials she might have.” That interaction, she explains, “is the implementation science in some ways.”

Implementation science asks us to examine the realities of classrooms honestly. It pushes us to identify barriers instead of ignoring them and to design systems that make good practice possible—not just theoretically sound.

The Weight of Too Much “More”

One of the most relatable moments in the conversation comes when Dr. Stukey describes how schools often respond to challenges. Instead of stopping to reflect, we add another program, another tool, or another initiative. She likens it to “the closet where you just keep shoving more in and shoving more in and hoping that the door will close—and then one day it just doesn’t.”

Teachers live with that overload every day. Multiple curricula, layered interventions, overlapping assessments—all without clear guidance on how the pieces fit together. In those conditions, fidelity isn’t just hard–it’s unrealistic.

What This Means for Teachers

For classroom teachers, this reframing offers both validation and direction. If fidelity has felt like a weapon rather than a support, you’re not imagining it. The issue is not a lack of effort or commitment on your part. It’s an imbalance between expectations and conditions.

Implementing with integrity means asking different questions:

• Do I understand why this practice works?

• Am I protecting the elements that matter most?

• What barriers are getting in the way—and who needs to know about them?

It also means recognizing that barriers are not failures; they are data. Naming what’s not working is part of responsible implementation, not resistance.

A Responsibility for Systems and Leaders

Dr. Stukey is equally clear that responsibility for implementation cannot rest solely on teachers. “If your expectation is this,” she says, “by God, you better ensure that the teacher has every single tool and you have paved the way for that to exist. And the reality is, that very rarely happens.”

For leaders, this is a call to move beyond mandates and toward coherence. That means aligning schedules, assessments, materials, and professional learning. It means being willing to stop doing some things so that others can be done well. And it means trusting teachers as partners in the work, not just recipients of directives.

Moving Forward Together

Fidelity doesn’t have to be a dirty word—but it does need to be reclaimed, reframed, or even replaced. When we shift the conversation toward integrity, implementation science, and systems-level responsibility, we create space for real change.

Teachers don’t need more reminders to “do it right.” They need clarity, trust, and conditions that allow evidence-based practices to take root. When those pieces come together, fidelity stops feeling like a threat—and starts looking more like collective commitment to doing right by students.

Ready to Turn Research Into Real Change?

If you’re passionate about improving literacy outcomes, tune in as host Kerri Larkin sits down with Marisa Ramirez Stukey, Ed.D., of The Reading League to unpack why the science of reading alone isn’t enough and how pairing it with implementation science helps educators overcome system-level barriers, move beyond rigid notions of fidelity, and support sustainable change in classrooms.

Listen to the full podcast episode to gain practical insights, actionable strategies, and a clearer path to lasting literacy impact.