There are six types of errors, a supervisor or a manager can make in assessing his subordinate. They are:
1. Halo effect
2. Leniency error
3. Central tendency error
4. Recency error
5. First impression error and
6. Similar-to-me error
Jonathan made a first impression error in rating Sue, which he thinks is an exceptional employee. He rated Sue higher than Megan even if he finds Megan a good performer, reliable and meets all his requirements.