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What a 50-Year-Old Psychology Experiment Taught Me About Being a Developmental Therapist

As a Developmental Therapist in Early Intervention, I spend my days observing children, coaching parents, writing reports, and helping families understand their child’s development.

Recently, I revisited David Rosenhan’s famous 1973 psychology experiment. Eight healthy adults gained admission to psychiatric hospitals after reporting that they heard voices. Once admitted, they behaved normally, yet staff continued to interpret their actions through the lens of a diagnosis.

The study sparked controversy, but one lesson has stayed with me:

Labels have power.

That lesson feels relevant to Early Intervention today.

Every week, I meet children who have been referred because someone is worried. Sometimes the concerns are valid. Sometimes they are not. Sometimes the child needs services. Sometimes the child needs more opportunities, more consistency, clearer boundaries, richer language exposure, or simply time to develop.

As professionals, we must be careful.

Once a child qualifies for services, it can become easy to view every behavior through a developmental lens.

A strong-willed toddler becomes “behavioral.”

A quiet child becomes “socially delayed.”

A child who prefers familiar routines becomes “rigid.”

A child who struggles during transitions becomes “a concern.”

The reality is that young children are still becoming who they are.

Not every behavior is a symptom.

Not every challenge is a disorder.

Not every delay predicts a child’s future.

One of the questions I continually ask myself is:

“Am I seeing the child, or am I seeing the evaluation?”

That question matters because our observations influence families. Our reports influence services. Our words influence how parents view their children.

I believe the best Developmental Therapists balance two responsibilities.

We identify areas where support is needed.

We protect families from becoming consumed by labels.

When I enter a family’s home, I am not looking for deficits. I am looking for a whole child. I want to know what makes them laugh. I want to know what motivates them. I want to know what they can do before focusing on what they cannot do yet.

Parents deserve honest information.

Children deserve accurate assessments.

Both deserve professionals who remain humble enough to recognize that development is complex.

The Rosenhan experiment reminds me that professionals are not immune to assumptions. Experience matters. Training matters. Clinical judgment matters. Yet curiosity matters too.

Every child I serve teaches me something.

The greatest lesson has been this:

A diagnosis is information.

A delay is information.

Neither one tells the whole story.

The child does.

As Developmental Therapists, our job is not simply to identify concerns. Our job is to help families see possibilities, support growth, and remember that every child is far more than a score, a report, or a label.

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