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Data Wrangling

Data Wrangling test

Type: Role specific skills

Time: 10 min

Languages: English

Level: Intermediate

Summary of the Data Wrangling test

This Data Wrangling test evaluates a candidate’s ability to clean, organize, and transform data for easier analysis. This screening test will help you hire data wrangling experts who can complete any task related to data preprocessing.

Covered skills

Data extraction and parsing
Data cleaning
Data integration and transformation
Data quality assessment and validation

Use the Data Wrangling test to hire

Data scientists, data analysts, data warehouse managers, data engineers, machine learning engineers, deep learning engineers, and any other roles that require intermediate data wrangling knowledge.

Preview questions

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About the Data Wrangling test

In today's data-driven world, businesses encounter vast amounts of data that need to be efficiently processed and analyzed. Effective data wrangling is crucial for transforming raw data into a suitable format and enhancing the quality of analysis. Every step of data preprocessing can be accomplished using data wrangling techniques.

This Data Wrangling test assesses candidates' abilities to clean, organize, and transform data for analysis. It evaluates their proficiency in fundamental data wrangling techniques and their ability to leverage these techniques when working with large datasets from diverse sources. By performing well on this test, candidates demonstrate the necessary skills to contribute to your company's success.

The Data Wrangling skills test encompasses four key skill areas, each focusing on a vital aspect of data wrangling:

Data Extraction & Parsing, which evaluates candidates on their ability to extract data from various sources and parse it into a structured format

Data Cleaning, which examines candidates' skills in identifying and rectifying data quality issues

Data Integration & Transformation, which assesses candidates on their capability to integrate data from multiple sources and transform it into a unified format

Data Quality Assessment & Validation, which focuses on candidates' abilities to assess the quality of the data and validate its integrity.

By employing our Data Wrangling test for screening, you can identify candidates who excel at cleaning, organizing, and transforming data for analysis. These individuals possess the skills necessary to handle diverse datasets, ensuring data integrity and enabling effective decision-making. Choose the right Data Wrangling experts who will streamline your data processes and help your company achieve its goals.

image of the subject-matter expert for this test

This test is made by a subject-matter expert

Gary R.

Gary has been working in the data science field for more than three years and is proficient in the fields of machine learning and data analysis. He has a Bachelor’s degree in Economics and a Master’s degree in Computer Science.

The combination of those two fields helps Gary to achieve even greater results. He is fond of computer science and loves to work on projects related to Artificial Intelligence which is, in his opinion, the future of our world.

Crafted with expert knowledge

TestGorilla’s tests are created by subject matter experts. We assess potential subject-matter experts based on their knowledge, ability, and reputation.

Before being published, each test is peer-reviewed by another expert, then calibrated using hundreds of test takers with relevant experience in the subject. Our feedback mechanisms and unique algorithms allow our subject-matter experts to constantly improve their tests.

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FAQs

An assessment is the total package of tests and custom questions that you put together to evaluate your candidates. Each individual test within an assessment is designed to test something specific, such as a job skill or language. An assessment can consist of up to 5 tests and 20 custom questions. You can have candidates respond to your custom questions in several ways, such as with a personalized video.

A video question is a specific type of custom question you can add to your assessment. Video questions let you create a question and have your candidates use their webcam to record a video response. This is an excellent way to see how a candidate would conduct themselves in a live interview, and is especially useful for sales and hospitality roles. Some good examples of things to ask for video questions would be "Why do you want to work for our company?" or "Try to sell me an item you have on your desk right now."

Besides video questions, you can also add the following types of custom questions: multiple-choice, coding, file upload, and essay. Multiple-choice lets your candidates choose from a list of answers that you provide, coding lets you create a coding problem for them to solve, file upload allows your candidates to upload a file that you request (such as a resume or portfolio), and essay allows an open-ended text response to your question. You can learn more about different custom question types here.

An assessment is the total package of tests and custom questions that you put together to evaluate your candidates. Each individual test within an assessment is designed to test something specific, such as a job skill or language. An assessment can consist of up to 5 tests and 20 custom questions. You can have candidates respond to your custom questions in several ways, such as with a personalized video.

A video question is a specific type of custom question you can add to your assessment. Video questions let you create a question and have your candidates use their webcam to record a video response. This is an excellent way to see how a candidate would conduct themselves in a live interview, and is especially useful for sales and hospitality roles. Some good examples of things to ask for video questions would be "Why do you want to work for our company?" or "Try to sell me an item you have on your desk right now."

Besides video questions, you can also add the following types of custom questions: multiple-choice, coding, file upload, and essay. Multiple-choice lets your candidates choose from a list of answers that you provide, coding lets you create a coding problem for them to solve, file upload allows your candidates to upload a file that you request (such as a resume or portfolio), and essay allows an open-ended text response to your question. You can learn more about different custom question types here.

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