Ruby on Rails Developer Test

Use a Ruby on Rails test to hire developers by testing their knowledge and understanding of Ruby.

  • What is a Ruby On Rails test?

    The Ruby on Rails test is specifically designed to assess a candidate's understanding and abilities in using the Ruby on Rails full-stack framework. It helps recruiters and employers to hire the best developer(s) by putting their knowledge and skills to the test.

    Typically, the Ruby on Rails test covers these areas of the framework:

    • Active record
    • Action controller and routing
    • Action view
    • Action helpers
    • Action mailers
    • Worker classes

Identify the best candidates and hire faster

Our pre-employment tests let you drill down to the best candidates at the click of a button.

  • Find those candidates who will excel in the role.

    Select the assessments that match the skills or behaviours for the position. You can test for software or coding competency, soft skills like teamwork, or personality traits, to be sure those who pass have high potential.

  • Reduce costs and time.

    No more laborious sifting of resumes or cover letters. Pick your ideal assessment mix, invite your applicants to take them, see the results in your dashboard. Get to the interview stage fast.

  • Eliminate bias.

    All your candidates take the assessments on a level playing field. Only their results determine whether they get shortlisted.

  • Why is a Ruby On Rails test so important when hiring?

    It's essential for recruiters and hiring managers to use the Ruby on Rails test when hiring developers to use the framework.

    When faced with a pool of CVs from similar candidates, it can be difficult to determine who the best person or people to take forward are. But the Ruby on Rails test allows you to put candidates' knowledge to the test and see who really does have the skills and knowledge required to make it through to the next interview round and be successful in the role.

    Because Ruby on Rails is such a specific framework, it's essential that you use a specific test to check candidates are comfortable with everything from coding to action controller and routing.

    Tests such as these also provide an unbiased way to assess applicants and ensure that people moving through to the next round of recruitment are those who deserve to be there based on their skills, knowledge and understanding.

    The Ruby on Rails test is a suitable hiring device for the following roles:

    • Web developer
    • Mobile developer
    • Software engineer
    • Ruby on Rails specialist

Sample Ruby on Rails Developer Test question

Which of the following is the recommended way to interact with a database in Ruby on Rails?

  • Use SQL directly in the model

  • Use the database adapter in the controller

  • Use the Active Record ORM in the model

  • Use the database adapter in the view

How to assess Ruby on Rails skills using our test

Our Ruby on Rails test asks a variety of questions that vary in difficulty level. Candidates who are proficient in Ruby on Rails should be able to answer most of the questions correctly.

The Ruby on Rails test provides valuable data-driven insight into what a candidate knows and understands. The test is structured using multiple-choice questions: a familiar format for most test-takers, that allows for instant and objective scoring.

As well as the correct answer, there are typically 2–4 distractors, representing common misconceptions and mistakes. This helps make the test more challenging, so a candidate's ability can be measured more accurately.

Test scores are provided to the user and can be compared to other test-takers in your talent pool to see how they perform relative to each other.

Each test has been thoroughly reviewed to ensure accuracy and validity in line with industry standards. It has been written, examined and edited by Ruby on Rails experts and psychometric professionals. It has also been reviewed by a diverse sample of job seekers to check for any issues including sensitivity, face validity, fairness and accessibility.

This test is continually monitored so our team can optimize performance and regularly assess fairness issues.


Predictor of job success

Picked provides evidence-based recommendations for tests to use for over 750 jobs. Our recommendation engine leverages data from the Occupational Information Network (O*NET) developed by the U.S. Department of Labor, Employment and Training Administration (USDOL/ETA).
  • Assessments

    A full suite of assessments

    Our platform comes with 12 tests across both foundation and advanced levels so they’re suitable for everyone. Including aptitude, behavioural and personality tests, you’ll have a full range of tests to help you find the candidates you’re seeking.

  • Analytics

    An array of candidate metrics

    For each of your candidates, you’ll be given a comprehensive report. Included will be all the metrics you need to build a detailed picture of each candidate and ensure you’re making the right hiring decisions.

“The platform is so simple to use. I had used competitor providers for over six years and will never go back. Fast, efficient and friendly!”
Greg Chambers, HR Business Partner, Littlefish Ltd
Greg Chambers, HR Business Partner, Littlefish Ltd
Ruby on Rails Developer Test expert

Devised by an expert

Developed by our team of I/O psychologists, psychometricians and subject matter experts, our assessments provide reliable, valid and impartial results. They strictly follow industry best practices and stay on the leading edge of innovations to have job seekers’ unique profiles, abilities and knowledge accurately evaluated while minimising bias. They draw on years of research and cutting-edge predictive analytics to create assessments that provide valuable insights into performance, retention, culture fit and more.

Ruby on Rails Developer Test FAQs

What is a Ruby On Rails specialist?

A Ruby on Rails specialist is someone who has good knowledge and understanding of the Ruby on Rails development software. Experts in the Ruby on Rails framework will be able to write and develop new software in the framework.

Is the Ruby On Rails test difficult?

For those who have no knowledge or understanding of the Ruby on Rails framework, the test would be difficult to score well in.

But for developers who have worked with or used Ruby on Rails before, it would be a case of brushing up on their knowledge to ensure they feel comfortable taking the test and giving themselves the best possible chance of success.

What other skills are required for Ruby On Rails?

As well as a strong knowledge of the framework itself, Ruby on Rails developers would ideally be good at problem-solving, have strong IT skills and be able to use logic to respond to complex challenges or scenarios.

Why is knowledge of Ruby On Rails important?

Ruby on Rails developers would not be able to meet the requirements of the job without demonstrating strong knowledge and understanding of the framework —which is why this test is such a useful recruitment tool.

“An unbeatable service, impressive platform and fantastic value for money.”
Laurence Fishman, Partner, NLPCA
Laurence Fishman, Partner, NLPCA

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