Reference checking is a vital part of a successful hiring strategy1 and is primarily used to: â¢ Verify information provided by the candidate. â¢ Better predict the candidateâs on-the-job success. â¢ Gain additional knowledge (e.g., candidateâs abilities) Reference checking aims to verify the information a candidate provided (e.g., resume) and can. provide a different perspective. Both instances present a better picture to the hiring manager of. how the candidate would perform on the job.