The first measurement is only half the picture.

A retest completes it.

Without repeating the measurement, "it feels different" remains impossible to examine — because there is nothing recorded to compare it with.

Why Baseline Comes First

The baseline establishes what is happening now: what the person reports and what the instrument records, under a defined task.

It is a starting reference — not a diagnosis, not a judgement, not proof of pathology.

Change the Input

Calibration changes an input. The change is deliberate and practitioner-directed, so the response that follows can be meaningfully compared with what came before.

Repeat the Measurement

The physical measurement is repeated under the same defined task, under comparable conditions.

Pressure. Distribution. Angle. Timing. Sequence. Repeatability. Loading. Movement response — whichever were relevant to the question being tested.

The measurement is repeated. It is not assumed.

Repeat the Pain Score

The pain score is also repeated — what the person reports now.

Both sides are retested. One without the other tells only half of what changed.

Compare Baseline With Retest

Comparison happens on each side separately:

what changed in the recorded physical response.

what changed in the reported pain score.

Then both are read together — as different information about the same person and the same task.

What if Pain Changes but Movement Measurement Does Not?

That is a finding.

The reported experience changed; the recorded response stayed stable under the defined task. It shapes the next question — it does not invalidate the test.

What if Measurement Changes but Pain Does Not?

Also a finding.

The recorded response changed; the reported pain score did not.

NO CHANGE IS STILL INFORMATION.

What if Nothing Changes?

Still information.

No measured change and no reported change after an input is a result — and it directs the practitioner's next decision.

Retesting Is Where Calibration Becomes Visible

The I AM 900 methodology is:

MEASURE → CALIBRATE → RETEST

The retest is where the loop becomes visible — where the change is examined against the recorded baseline rather than described from memory.

Do not stop at:

"DOES IT FEEL DIFFERENT?"

Also ask:

"WHAT CHANGED WHEN WE MEASURED IT AGAIN?"

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