One of the biases that tend to distort appraisals is Halo effect. Halo effect refers to which of the following? 

Read the following passage and answer the next 4 question (Q11-Q14) From the beginning and through the career, you need to know how good you are in terms of particular fields of activity. It is difficult to give yourself an objective evaluation. Performance appraisal system is a useful management tool which helps to gain feedback, review and estimate whether the performance is effective and discuss what needs to be done for it to become so. Performance Appraisal is the systematic evaluation of the performance of employees and to understand the abilities of a person for further growth and development. Managers perform evaluations to benefit both employees and the employer. The most significant benefit of the appraisal system for the manager or the head of department is that it provides a document of employee performance over a specific period. It can help in decisions related to promotion, compensation, employees development and motivation. In order to be effective, however, managers should be careful that biases and judgment errors of various kinds do not spoil the performance appraisal process. Bias here refers to inaccurate distortion of a measurement.