We tested both multiple choice and free-form coding. Multiple choice was the winner for several reasons. We found that candidates prefer multiple choice questions and complete multiple choice tests at a much higher rate (>80%) than long-form coding tests. Additionally, multiple choice tests are just as predictive as free form versions. Moreover, it enables us to test adaptively across a range of skills and gain a much more granular understanding of a candidate’s skillset, which is often not possible with free-form coding problems.
However, we know sometimes a qualitative review of a candidate's code can offer additional signal during the hiring process. So we do offer a hands-on coding exercises skill block that allows you to rewatch how the candidate wrote the code to answer the questions, and the number of test cases passed. This skill block can be sent by itself as a standalone test, or combined with other skill blocks to create a test with both multiple choice questions and long-form coding questions.
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