The science behind TestGorilla.

Our mission is to provide you and your candidates with an enjoyable, highly accurate, and science-backed talent assessment experience – without bias or stress. We achieve this by taking a deeply scientific, multi-layered approach that ensures our screening tests are always valid, reliable, and fair.

Created and validated by experts.

It all starts with our psychometrics team. First, we use the proven and well-established principles of test theory to design the framework for our tests. Then, subject-matter experts in each field develop the questions for these tests with guidance from our team. These tests are then peer reviewed by other experts to ensure their accuracy and effectiveness.

A portrait of TestGorilla's Head of Assessments, Kim Severinsen

“The breadth, depth, and diversity of the talented people in our Assessment Team ensure we have the capacity and expertise to deliver leading edge, science-based measurement, assessment content, insights, and innovation.”

Kim Severinsen, Head of Assessment at TestGorilla

An illustration showing scientific data research

Reliable, science-backed tests.

Our work doesn’t stop there. Our advanced statistical algorithms analyze key indicators that verify and improve our tests on an ongoing basis. We use measures such as Cronbach’s alpha to help us track and confirm the internal consistency of the questions in a test.

A photograph and illustration showing an assessment scientist and scientific research

Predicting job success with data.

Using the UGESP framework of employee selection and the US Department of Labor’s skills analyses, we verify the content validity (what a test evaluates) of each of our tests.

We also collect feedback from our customers about the performance of candidates they hire. This helps us confirm the predictive validity of each test and allows us to make data-driven recommendations about which tests to use for a given job role.

Screenshot showing a candidate's test scores

Fair for all candidates.

We’ve built our platform and tests on the standards of the Equal Employment Opportunity Commission (EEOC) to remove unconscious bias from the hiring process. This means you’ll see your best candidates ranked the highest regardless of gender, race, ethnicity, or age. We also periodically use differential item functioning (DIF) studies performed on data collected from candidates. This helps us to continually remove any potential adverse impact from the hiring process.

A photograph of a happy customer

An enjoyable candidate experience.

TestGorilla’s simple, streamlined design lets your candidates focus on what matters most: showing their skills. Our questions provide candidates with realistic scenarios that closely mimic the experience of working in the positions they’re applying for.

A screenshot showing candidates ranked by their test scores

Insightful and uncomplicated.

Finally, we put just as much thought and care into the reports and insights we deliver you as we do our tests. In just a few clicks, TestGorilla lets you review, rank, and quickly understand your candidates’ strengths and weaknesses. Our clear and organized reports are designed to help you focus on accurate, data-driven hiring decisions that will positively impact the long-term success of your company.

Read more about science-backed hiring

Science series articles are written by our Assessment Team: A group of IO psychology, data science, psychometric experts, and assessment development specialists with a deep understanding of the science behind skills-based hiring.

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How to interpret test fact sheets: validity

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Improve your hiring now.

Start using TestGorilla today, or talk to us about your hiring challenges to discover how we can help.

The contents of this page are intended for general information purposes only and do not constitute legal advice, nor do they substitute legal counsel.