Stata Practice Test

The Stata Practice Test is a free intermediate-level, 20-minute skill test from Science of Apps. It tests Stata skills for data analysis — the interface, data management and do-files, variables, labels and data cleaning, descriptive statistics and graphs, regression and inference, and reproducibility and output — written to Stata documentation and standard statistical practice for 2026. Score 70% or more on its 20 questions to earn a verifiable Stata Proficiency certificate (SOA-2HC). Every question is based on published standards and research — including Stata documentation (StataCorp), e-Handbook of Statistical Methods (NIST) — and each answer is explained with its source.

Science of Apps offers a free Stata Practice Test, updated for 2026 and 2027. It measures interface and data, variables and cleaning, statistics and graphs and regression, inference and output 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 Stata 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: Stata documentation (StataCorp); e-Handbook of Statistical Methods (NIST). 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: Interface and Data (Commands, Import and Do-files); Variables and Cleaning (Generate, Recode and Missing); Statistics and Graphs (Summaries, Tables and Graphs); Regression, Inference and Output (Regression, p-values and Reproducibility). Every question is an original scenario written to the 2026–2027 standard, with the published source named under it.

Data analyst or statistician, Researcher in economics or social science, Epidemiologist or health researcher, Graduate student and Policy analyst. It suits anyone who wants a quick, verifiable way to show Stata knowledge in 2026 and 2027, from students and career switchers to experienced professionals.

Stata is a statistical software package used widely in economics, social science, epidemiology and public health. It combines data management, statistics, graphics and reproducible scripting (do-files) in one command-driven environment.

A do-file is a script of Stata commands. Running analysis from a do-file makes the work reproducible, documented and easy to re-run or correct, rather than clicking menus interactively.

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.