What Is Skill Testing and How Does It Work?

Updated

Skill testing is a structured way to measure whether someone can actually perform tasks in a specific skill area, usually through a timed online assessment that produces a score or a certificate. It works for two audiences: individuals who want proof of competence for a resume or job search, and employers who want a consistent way to screen candidates or evaluate current staff. ExpertRating, for example, describes itself as offering skill testing and online certification across 1,100+ skill tests and 300+ certifications, used by individuals and by companies such as Walmart, Google, IKEA, Ericsson, GAP, and Amazon, according to its site.

Skill testing, certification, and pre-employment testing: what's the difference

These three terms overlap but answer different questions.

Term Question it answers Who typically uses it Typical output
Skill testing Can this person do tasks in this skill area? Individuals, trainers, employers Score or pass/fail result
Online certification Can this person demonstrate accepted knowledge in a field? Individuals building credentials Certificate
Pre-employment testing Should this candidate advance in a hiring process? Employers and recruiters Candidate comparison data

A single platform can serve all three. ExpertRating positions its certifications as a way for individuals to "prove their expertise" and its corporate testing as a tool for evaluating employees and applicants. The distinction matters when you decide what you need: a certificate to show an employer, a score to benchmark yourself, or a screening result tied to a job opening.

How a skill test typically works

The general flow is the same whether you are testing yourself or being tested by an employer:

  1. Choose the skill area. Select the specific test that matches the task you need to prove—not a broad field. ExpertRating's catalog spans 1,100+ tests, so the main risk is picking a test that is adjacent to, but not the same as, the skill in question.
  2. Register and access the test. On ExpertRating this happens through the site's login area; the test is delivered online.
  3. Take the timed assessment. You answer questions within the test's time limit in a single session. The site reports delivering over 3 million certification tests and courses annually, with "10 tests every minute" across 160 countries.
  4. Receive a result. Depending on the test, you get a score, a pass/fail outcome, or a certificate. ExpertRating states its certifications are developed under ISO 9001:2015 standards and are accepted by hundreds of employers and organizations worldwide.
  5. Use the result. Individuals attach certificates to job applications or profiles; employers fold scores into hiring or training decisions.

What to verify before you start: the test's scope (does it cover the tools and tasks your target role actually uses?), the passing standard, whether a certificate is issued or only a score, and whether the employers you care about recognize the credential. ExpertRating's own claim of global acceptability is a starting point, not a guarantee for every employer—check the specific job postings or HR contacts you are targeting.

Individual use vs. employer use

If you are testing yourself to prove skills: the goal is a credential or score you can show. ExpertRating's pitch to individuals is career advancement—certifications "greatly boost your chances of moving ahead in your career"—and it lists free online certifications alongside paid ones, so you can sample the format before committing. Pick the narrowest test that matches your target job, and keep the certificate or score report where recruiters will see it.

If you are screening candidates or evaluating employees: the goal is comparability. A standardized test gives every candidate the same tasks and the same scoring, which is why ExpertRating reports a 86% reorder rate among clients and use by large employers. Decide in advance what score threshold triggers the next step, and use the same test for all candidates in a role so results are comparable.

Common ways skill testing goes wrong

  • Wrong skill area. A test in "digital marketing" may not cover the specific ad platform a job requires. Match the test to the tasks in the job description, not the job title.
  • Test environment problems. Timed online tests assume a stable connection and an uninterrupted session. If you are testing remotely, confirm the platform's rules on retakes and interruptions before you begin.
  • Results not accepted by the target employer. A certificate is only useful if the hiring organization recognizes it. For high-stakes applications, ask the employer directly whether they accept third-party certifications.
  • Treating one score as a complete picture. A test measures performance on that test's questions. Use it alongside work samples, interviews, or prior experience rather than as a sole decision point—especially for hiring.

Quick decision guide

  • Need a resume credential? Take a certification test in your exact skill area and confirm the certificate is issued.
  • Need to benchmark yourself? Start with a free certification or test where available, then move to the paid test that matches your target role.
  • Need to screen candidates? Standardize on one test per role, set the threshold before you review results, and check that the test's scope matches the job's actual tasks.