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About the test:

The A/B Testing Test assesses a candidate's knowledge of A/B testing methodologies and their ability to analyze and interpret data to make data-driven decisions. It evaluates their understanding of statistical concepts, experimental design, hypothesis testing, and data analysis techniques.

Covered skills:

  • Designing A/B Tests
  • A/B Testing Integrations
  • A/B Testing Conversions
  • Data Analysis
  • A/B Testing Web Applications

9 reasons why
9 reasons why

Adaface A/B Test is the most accurate way to shortlist Data Analysts

Reason #1

Tests for on-the-job skills

The A/B Testing Test helps recruiters and hiring managers identify qualified candidates from a pool of resumes, and helps in taking objective hiring decisions. It reduces the administrative overhead of interviewing too many candidates and saves time by filtering out unqualified candidates at the first step of the hiring process.

The test screens for the following skills that hiring managers look for in candidates:

  • Designing and implementing A/B tests
  • Analyzing data to draw meaningful insights
  • Integrating A/B testing into various systems
  • Testing web applications using A/B methods
  • Optimizing conversions using A/B testing
Reason #2

No trick questions

no trick questions

Traditional assessment tools use trick questions and puzzles for the screening, which creates a lot of frustration among candidates about having to go through irrelevant screening assessments.

View sample questions

The main reason we started Adaface is that traditional pre-employment assessment platforms are not a fair way for companies to evaluate candidates. At Adaface, our mission is to help companies find great candidates by assessing on-the-job skills required for a role.

Why we started Adaface
Reason #3

Non-googleable questions

We have a very high focus on the quality of questions that test for on-the-job skills. Every question is non-googleable and we have a very high bar for the level of subject matter experts we onboard to create these questions. We have crawlers to check if any of the questions are leaked online. If/ when a question gets leaked, we get an alert. We change the question for you & let you know.

How we design questions

These are just a small sample from our library of 10,000+ questions. The actual questions on this A/B Testing Test will be non-googleable.

🧐 Question


Hiring Developer
Skewed Data
Two companies A and B hired developers from the year 2001 to 2005. The given bar graph shows the hiring details. 
Now select the statements that are true based on the given details.

A: The data given for Company A is skewed to the left.
B: The data given for Company B is skewed to the right.
C: The data given for Company A is skewed to the right.
D: For Company B, mean and mode are equal.
E: For Company B, mean is equal to median but less than mode.
F: For Company A, median is less than mode but greater than mean.


Negative correlation
Saffi, one of the popular schools in San Francisco did a school wide study of the students in middle school. The study found that there is a negative correlation between the time spent on Facebook per day by students and their academic achievement. How can we understand the results of this study?
A: An increase in time spent on Facebook per day causes a drop in the academic achievement of students at the middle school level.

B: There is an association between an increase in time spent on Facebook per day and the drop in the academic achievement of students at Saffi. 

C: An increase in the time spent on Facebook per day causes a drop in the academic achievement of students at Saffi. 

D: There is an association between an increase in time spent on Facebook per day and the drop in the academic achievement of students at the middle school level.
🧐 QuestionπŸ”§ Skill


Hiring Developer
Skewed Data

3 mins

Data Analysis


Negative correlation

2 mins

Data Analysis
🧐 QuestionπŸ”§ SkillπŸ’ͺ DifficultyβŒ› Time
Hiring Developer
Skewed Data
Data Analysis
Medium3 mins
Negative correlation
Data Analysis
Medium2 mins
Reason #4

1200+ customers in 75 countries

customers in 75 countries

With Adaface, we were able to optimise our initial screening process by upwards of 75%, freeing up precious time for both hiring managers and our talent acquisition team alike!

Brandon Lee, Head of People, Love, Bonito

Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment A/B Testing Test in your hiring process is that it is an elimination tool, not a selection tool. In other words: you want to use the test to eliminate the candidates who do poorly on the test, not to select the candidates who come out at the top. While they are super valuable, pre-employment tests do not paint the entire picture of a candidate’s abilities, knowledge, and motivations. Multiple easy questions are more predictive of a candidate's ability than fewer hard questions. Harder questions are often "trick" based questions, which do not provide any meaningful signal about the candidate's skillset.

Science behind Adaface tests
Reason #6

1 click candidate invites

Email invites: You can send candidates an email invite to the A/B Testing Test from your dashboard by entering their email address.

Public link: You can create a public link for each test that you can share with candidates.

API or integrations: You can invite candidates directly from your ATS by using our pre-built integrations with popular ATS systems or building a custom integration with your in-house ATS.

invite candidates
Reason #7

Detailed scorecards & benchmarks

View sample scorecard
Reason #8

High completion rate

Adaface tests are conversational, low-stress, and take just 25-40 mins to complete.

This is why Adaface has the highest test-completion rate (86%), which is more than 2x better than traditional assessments.

test completion rate
Reason #9

Advanced Proctoring

Learn more

About the A/B Assessment Test

Why you should use Pre-employment A/B Testing Test?

The A/B Testing Test makes use of scenario-based questions to test for on-the-job skills as opposed to theoretical knowledge, ensuring that candidates who do well on this screening test have the relavant skills. The questions are designed to covered following on-the-job aspects:

  • Designing effective A/B tests
  • Analyzing data to draw insights
  • Integrating A/B testing into applications
  • Testing web applications for performance
  • Optimizing conversions through A/B testing
  • Understanding statistical significance in A/B testing
  • Identifying and resolving test conflicts
  • Analyzing user behavior in A/B testing
  • Implementing A/B testing frameworks
  • Developing data-driven hypotheses

Once the test is sent to a candidate, the candidate receives a link in email to take the test. For each candidate, you will receive a detailed report with skills breakdown and benchmarks to shortlist the top candidates from your pool.

What topics are covered in the A/B Testing Test?

  • Designing A/B Tests

    Designing A/B Tests involves the creation of experiments with two or more variants in order to compare their performance and make data-driven decisions. This skill is crucial in order to optimize website design, user experience, and marketing campaigns.

  • Data Analysis

    Data Analysis is the process of inspecting, cleaning, transforming, and modeling data to uncover useful insights and patterns. In the context of A/B Testing, data analysis is essential to interpret experimental results, validate hypotheses, and determine statistically significant differences between variants.

  • A/B Testing Integrations

    A/B Testing Integrations refer to the ability to integrate A/B testing tools with other systems or platforms such as web analytics tools, customer relationship management (CRM) software, or marketing automation platforms. This skill ensures smooth data flow, accurate tracking, and enables advanced targeting and personalization.

  • A/B Testing Web Applications

    A/B Testing Web Applications involves the implementation and execution of A/B tests specifically for web-based applications or websites. This skill includes knowledge of front-end development, HTML, CSS, JavaScript, and familiarity with web analytics and tracking tools.

  • A/B Testing Conversions

    A/B Testing Conversions focuses on measuring and optimizing conversion rates, which is the percentage of visitors who complete a desired action on a website such as making a purchase, subscribing to a newsletter, or filling out a form. This skill helps businesses improve their online marketing strategies, enhance user experiences, and drive meaningful outcomes.

  • Full list of covered topics

    The actual topics of the questions in the final test will depend on your job description and requirements. However, here's a list of topics you can expect the questions for A/B Testing Test to be based on.

    Test design
    Sample size calculation
    Hypothesis testing
    Control and treatment groups
    Data collection
    Statistical analysis
    Confidence intervals
    A/B testing metrics
    Data visualization
    Statistical significance
    Null and alternative hypotheses
    Power analysis
    Multivariate testing
    Experimental bias
    Data interpretation
    Conversion rate optimization
    User experience optimization
    Experimental design
    Ethical considerations
    Data cleansing
    A/B testing platforms
    A/B testing reporting
    A/B testing limitations
    Statistical sampling
    Data-driven decision making
    Regression analysis
    Correlation analysis
    Factor analysis
    Time series analysis
    Data segmentation
    Statistical inference
    Data manipulation
    Statistical models
    Data-driven insights
    Survey design
    Data collection tools
    Statistical hypothesis
    Data analysis techniques
    Data validation
    Data visualization tools
    Conversion rate analysis
    Statistical significance testing
    Data-driven decision making
    Experimental control
    Statistical tests
    Cohort analysis
    User behavior analysis
    Analytics tools
    Data analytics workflow
    Statistical software tools
    A/B testing implementation
    Data-driven marketing
    Data-driven optimization
    A/B testing best practices
    Data analysis skills

What roles can I use the A/B Testing Test for?

  • Data Analyst
  • Marketing Analyst
  • Product Manager
  • Business Analyst
  • Data Scientist

How is the A/B Testing Test customized for senior candidates?

For intermediate/ experienced candidates, we customize the assessment questions to include advanced topics and increase the difficulty level of the questions. This might include adding questions on topics like

  • Designing experiments for different user segments
  • Using statistical methods in data analysis
  • Performing A/B testing on large datasets
  • Implementing A/B testing best practices
  • Evaluating user experience in A/B testing
  • Interpreting A/B test results accurately
  • Creating effective test variations
  • Optimizing test duration and sample size
  • Monitoring A/B tests in real-time
  • Providing actionable recommendations
Singapore government logo

The hiring managers felt that through the technical questions that they asked during the panel interviews, they were able to tell which candidates had better scores, and differentiated with those who did not score as well. They are highly satisfied with the quality of candidates shortlisted with the Adaface screening.

reduction in screening time

A/B Online Test FAQs

Can I combine multiple skills into one custom assessment?

Yes, absolutely. Custom assessments are set up based on your job description, and will include questions on all must-have skills you specify. Here's a quick guide on how you can request a custom test.

Do you have any anti-cheating or proctoring features in place?

We have the following anti-cheating features in place:

  • Non-googleable questions
  • IP proctoring
  • Screen proctoring
  • Web proctoring
  • Webcam proctoring
  • Plagiarism detection
  • Secure browser
  • Copy paste protection

Read more about the proctoring features.

How do I interpret test scores?

The primary thing to keep in mind is that an assessment is an elimination tool, not a selection tool. A skills assessment is optimized to help you eliminate candidates who are not technically qualified for the role, it is not optimized to help you find the best candidate for the role. So the ideal way to use an assessment is to decide a threshold score (typically 55%, we help you benchmark) and invite all candidates who score above the threshold for the next rounds of interview.

What experience level can I use this test for?

Each Adaface assessment is customized to your job description/ ideal candidate persona (our subject matter experts will pick the right questions for your assessment from our library of 10000+ questions). This assessment can be customized for any experience level.

Does every candidate get the same questions?

Yes, it makes it much easier for you to compare candidates. Options for MCQ questions and the order of questions are randomized. We have anti-cheating/ proctoring features in place. In our enterprise plan, we also have the option to create multiple versions of the same assessment with questions of similar difficulty levels.

I'm a candidate. Can I try a practice test?

No. Unfortunately, we do not support practice tests at the moment. However, you can use our sample questions for practice.

What is the cost of using this test?

You can check out our pricing plans.

Can I get a free trial?

Yes, you can sign up for free and preview this test.

I just moved to a paid plan. How can I request a custom assessment?

Here is a quick guide on how to request a custom assessment on Adaface.

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40 min tests.
No trick questions.
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