Question: BARS are considered to be superior to graphic rating scales for measuring performance because they detail the behaviors associated with each level of performance. What are the drawbacks of using BARS for performance appraisal? Check all that apply. BARS are more subject to bias and distortion than other rating scales. When using BARS, you need to have a different appraisal form for every different type of job in the company. BARS take a very long time and a lot of effort to develop. BARS are not specific enough to be used for effective ratings.