The science behind TestGorilla

Explore how we use industry-leading science to shake up how to hire

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Where in the hiring process do TestGorilla assessments fit best?

Where in the hiring process does a TestGorilla assessment fit best? 5 reasons to assess candidates early

Science series materials are brought to you by TestGorilla’s 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. At TestGorilla, we often wax lyrical about why you should use talent assessments for skills-based hiring. Something that we want to address in more depth, although we’ve covered tips for test ordering and data-driven ways to increase candidate satisfact

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Understanding test timing cognitive load theory and talent assessment

Understanding test timing: Cognitive load theory and talent assessment

Science series materials are brought to you by TestGorilla’s 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. Have you ever wondered why our Culture Add test is 10 minutes long? Or why our Coding: Data Structures – Arrays test is 35?  There’s more behind test timing than you might think: This seemingly simple aspect of talent assessment plays a crucial role in

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How to interpret test fact sheets: validity

How to interpret test fact sheets, Part 2: Validity

Science series materials are brought to you by TestGorilla’s 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. At TestGorilla, we are committed to providing assessments that are not only reliable but also valid, ensuring that they are practical, relevant, and impactful tools for talent assessment.  In the first installment of our series on how to interpret test

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How to interpret test fact sheets, Part 1: Reliability

Science series materials are brought to you by TestGorilla’s 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. Establishing the reliability and validity of assessments is a complex process, involving the meticulous and ongoing examination of various pieces of evidence. Several psychometric measures contribute to this evidence, including reliability, content val

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Revisiting the validity of different hiring tools: New insights into what works bet

Revisiting the validity of different hiring tools: New insights into what works best - Part 2

Science series materials are brought to you by TestGorilla’s 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. Predicting the future is a difficult task, usually done only by skilled oracles, recruiters, and hiring managers. You read that right. Employers looking to hire top candidates are aiming to predict the future success of a candidate in their role. While

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what is predictor-criterion congruence?

What is predictor-criterion congruence and how can it help me hire successfully?

Science series materials are brought to you by TestGorilla’s 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. In the dynamic world of hiring, finding the right candidate isn't just a stroke of luck – it's a science.  While landing a top performer can feel magical, there is nothing elusive or mystical about the selection process that can help you consistently h

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A brief history of classical test theory

A brief introduction to classical test theory

Science series materials are brought to you by TestGorilla’s Assessment Team: A group of IO psychology, data, and psychometric experts with a deep understanding of the science behind skills-based hiring. If you've ever sat for an exam, at school, during a job application, or for a professional certification, you've encountered the principles of test design firsthand. Although taking tests might be a routine experience, the underlying framework that ensures they work as intended remains a mystery

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The science of structured interviews featured image

Mastering the art of structured interviews: The science behind frame of reference training

Science series materials are brought to you by TestGorilla’s 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. In the fast-paced world of talent acquisition, staying ahead of the curve is essential for hiring managers and recruiters alike. To identify the right candidates and make informed decisions, understanding the science of structured interviews and Frame

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Revisiting the validity of different hiring tools featured image

Revisiting the validity of different hiring tools: New insights into what works best

Science series materials are brought to you by TestGorilla’s 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. Employers are in the prediction business: They have to predict whether a candidate will be successful in a job based on limited information about their capabilities. To improve the accuracy of these predictions, it helps to prioritize hiring tools (e.g

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How can valid, reliable employee selection tests minimize selection errors and increase selection hits?

Science series materials are brought to you by TestGorilla’s Assessment Team: A group of IO psychology, data, and psychometric experts with a deep understanding of the science behind skills-based hiring. If you read our previous blog post about selection error, you’ll remember that we defined exactly what it is and explained that you can make better hiring decisions by reducing it.  Here, we’re taking it one step further. In this post, we’ll expand on those points by showing you how using valid,

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How to select tests for an assessment and avoid a skill overlap

How to select tests for an assessment (and avoid a skill overlap)

Science series materials are brought to you by TestGorilla’s Assessment Team: A group of IO psychology, data, and psychometric experts with a deep understanding of the science behind skills-based hiring. If you’re using TestGorilla to create an assessment and you’re seeking guidance in selecting tests, then this is the blog post for you. Read on for concise recommendations from our Assessment Team regarding how to select tests for an assessment – and how to avoid skill or construct overlaps with

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Best practices for setting up asynchronous video interviews FI

Best practices for setting up asynchronous video interviews

Science series materials are brought to you by TestGorilla’s 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. Over the years, organizations have introduced various technologies to their recruitment and personnel selection processes in an effort to enhance efficiency, reduce costs, and improve the likelihood of a successful hire.  As one of the most widely util

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