Root Cause Analysis (TapRooT) Practice Test

The Root Cause Analysis (TapRooT) Practice Test is a free intermediate-level, 20-minute skill test from Science of Apps. It tests root cause analysis concepts in the style of the TapRooT methodology — investigation fundamentals and gathering evidence, building the sequence of events, identifying causal factors, finding root causes with a structured tree and generic causes, and developing effective corrective actions and reporting — written to recognised RCA principles, US CSB investigation practice and IHI RCA2 guidance for 2026. Score 70% or more on its 20 questions to earn a verifiable Root Cause Analysis TapRooT Proficiency certificate (SOA-RCAT). Every question is based on published standards and research — including NRCA Roofing Manual and technical guidance (National Roofing Contractors Association), Investigation reports and safety videos (US Chemical Safety and Hazard Investigation Board), Root cause analysis tools and resources (ASQ) — and each answer is explained with its source.

Science of Apps offers a free Root Cause Analysis (TapRooT) Practice Test, updated for 2026 and 2027. It measures investigation fundamentals, sequence of events, finding root causes and corrective actions and reporting and gives instant results with a shareable certificate.

Read the four skill areas on this page, then take the 20-minute test online — no fee, course or sign-up. You see every answer explained when you finish. Score 70% or more and you get a Root Cause Analysis TapRooT Proficiency certificate straight away, on screen, as a PDF and by email, with a credential ID anyone can verify.

Yes. The questions are original scenarios written by Science of Apps, and each one is based on a public source you can read: NRCA Roofing Manual and technical guidance (National Roofing Contractors Association); Investigation reports and safety videos (US Chemical Safety and Hazard Investigation Board); Root cause analysis tools and resources (ASQ); RCA²: Improving Root Cause Analyses and Actions to Prevent Harm (Institute for Healthcare Improvement); Fishbone (Ishikawa) diagram (ASQ). The source is shown under each question and linked in the answer review. Science of Apps doesn't copy questions from other tests.

Four skill areas with five questions each, drawn from a bank of 10 per area so a retake brings new questions: Investigation Fundamentals (Purpose, Evidence and Objectivity); Sequence of Events (Timeline, SnapCharT and Causal factors); Finding Root Causes (Root cause tree, 5 Whys and Generic causes); Corrective Actions and Reporting (Actions, Effectiveness and Reporting). Every question is an original scenario written to the 2026–2027 standard, with the published source named under it.

Incident investigator, Safety or quality professional, Reliability or operations engineer, Risk and compliance analyst and Healthcare or process safety investigator. It suits anyone who wants a quick, verifiable way to show TapRooT Root Cause Analysis knowledge in 2026 and 2027, from students and career switchers to experienced professionals.

Root cause analysis (RCA) is a structured process for finding the underlying causes of an incident or problem, not just its symptoms, so that effective corrective actions prevent recurrence. Methods like TapRooT provide a systematic way to identify causal factors and their root causes.

A good root cause is one that, if corrected, would prevent or greatly reduce the chance of the problem recurring, and that management can actually control. Stopping at "human error" or blame is not a root cause; the systemic reasons behind the error are.

Yes. The test is online, in English and free everywhere — people take it from India, the US, the UK, Europe, Africa, Latin America and Asia-Pacific. Your certificate is dated with your own local date and can be verified from anywhere at scienceofapps.com/certification/verify/.

20 questions — 5 from each of 4 skill areas — with a 20-minute limit. You need 70% (14 of 20) to pass and 90% for distinction.

We rate it Intermediate: assumes hands-on experience in the role. It has 20 scenario questions — 5 from each of 4 skill areas — and a 20-minute limit. You need 70% (14 of 20) to pass and 90% for distinction.

Nothing. There is no fee to take a test, to receive the certificate, to have it emailed or to verify it, and no sign-up.

On our server, not in your browser. The answers never reach the page until you submit, so a certificate can only be earned by passing. Each certificate gets a unique credential ID stored by Science of Apps.

You see your score for each area and every question with the correct answer and why, with the published source behind it. You can retake after 30 minutes, and the retake draws questions you haven't seen yet.

No. Every certificate is dated, so it always shows when you passed. Retake a test any time for a newer date or a higher score.

Yes. After you pass, Add to LinkedIn opens the Licenses & certifications form with the certificate name, Science of Apps as the issuer, the issue date, your credential ID and the verification link filled in. You can also download it as a PDF or PNG, and it's emailed to you as a PDF.

Every certificate has a credential ID and a QR code. Scanning it, or entering the ID at scienceofapps.com/certification/verify/, shows the holder's name, the certification, the score and the issue date from our records.

No. They are Science of Apps' own assessments of applied skill. They aren't issued by a university or standards body, and they work best alongside a portfolio that shows the skills in real work.