Field kit

The reliability check

Twenty-five plain statements about what you already do. About five minutes. At the end you'll see which of your five defenses is thinnest, and what to do about it this week.

The organizations that almost never have accidents don't wait for one to find out where they're weak. Safety researchers call the habit preoccupation with failure: staying alert to how things could go wrong and treating a near miss as information rather than proof that all is well. This check points that habit at you.

Each statement describes something you can verify: a number you know, a person you've asked, a list you keep. Answer for how things stand today, not how you'd like them to be. Five statements belong to each step of the SCOTT Protocol, so the result shows you a profile across all five rather than a single grade.

This is a self-reflection tool, not a medical test. It doesn't measure your health, diagnose anything or predict what will happen to you. A low number in a step means a habit you haven't built yet, nothing more. If something about your health worries you right now, call your clinician; in an emergency, call 911.

25 statements, about five minutes

Step 1: Self-awareness

Borrowed from preoccupation with failure. How true is each statement for you right now?

I can name the conditions my parents and grandparents had and the ages they were diagnosed.
I could tell a new doctor my own conditions, past surgeries and allergies without looking anything up.
I know the two or three health problems I am most likely to face, given my family history and my habits.
I know which of my everyday habits is doing my health the most harm, and I have decided what to do about it.
When a new symptom hangs on for a few weeks, I get it checked instead of explaining it away.

Step 2: Consistent monitoring

Borrowed from sensitivity to operations and reluctance to simplify. How true is each statement for you right now?

I know my last blood pressure reading and roughly what it has been over the past year.
I check at least one number at home on a schedule (blood pressure, weight or blood sugar) and write it down.
I know my most recent A1C or blood sugar result and whether it has gone up or down.
I read my own test results, in the patient portal or on paper, instead of assuming no news is good news.
When I feel off, I don't settle for the easy explanation ("just stress," "just getting older") until the serious possibilities have been ruled out.

Step 3: Oversight

Borrowed from deference to expertise. How true is each statement for you right now?

I have a primary care clinician who has seen me in the past year.
I have someone I would bring to a serious appointment.
I go into appointments with my questions written down, most important first.
Before I leave an appointment, I can say back what my main problem is, what I need to do and why it matters.
If I got a serious diagnosis or a recommendation for surgery, I would ask for a second opinion and I know how to get one.

Step 4: Tenacity

Borrowed from commitment to resilience. How true is each statement for you right now?

When a medicine gives me side effects, I call the prescriber instead of quietly stopping it.
If a test result, referral or callback doesn't arrive when promised, I chase it myself.
After a bad stretch, like missed doses or a few weeks without exercise, I pick the plan back up within days instead of giving up on it.
I have named a health care proxy, and that person knows what I would want.
If I ended up in the hospital tomorrow, someone close to me knows my medications, my doctors and where my paperwork is.

Step 5: Taking action

Borrowed from zero preventable harmful events. How true is each statement for you right now?

I am up to date on the screenings recommended for someone my age.
When a clinician orders a test or a follow-up visit, I book it within a week.
I keep one current list of every medicine and supplement I take, and it comes with me to appointments.
I have a one-page summary of my health that someone could hand to an emergency room.
In the past year I made at least one concrete change because of a number I didn't like.

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Reading your profile

Each step can hold 15 points. Think of anything up to 5 as a thin layer, 6 to 10 as a layer with some holes in it, and 11 or more as a layer that's doing its job. The numbers only compare you with yourself; there is no passing mark and no average to beat.

Why point you at the thinnest step first? Because of the way harm actually gets through. James Reason, who spent a career studying human error, pictured every system's defenses as slices of Swiss cheese: each slice has holes, and an accident happens when the holes in several slices line up. You can't make any layer perfect. You can shrink the biggest holes, and the biggest holes are usually in the layer you've been ignoring.

Pick one next step, do it this week, and take the check again in six months. Scores drift. A parent's new diagnosis changes your family history; a new job knocks your routine loose; a clinician retires. The point of checking again is to catch that drift while it's still small.

What stays on this device

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Last updated October 16, 2026. Guidance cited here was current on that date; clinical guidelines change, so check with your own clinician. See our editorial policy.

Want a physician to look at your thinnest defense with you?

Dr. Scott works with individuals, families and leadership teams through The Scott Health Advisory: a structured review of where your health could fail, and a plan to keep it from happening.