You overhear a manager, who is writing a performance appraisal, say the following aloud: "I've only seen Ed stock shelves - and he seems like a smart guy. Unfortunately, I also have to rate him on customer service skills and teamwork. Although he's a new employee, based on what I know about him so far, I'm sure he's good at everything he does. I'll give him a '9' out of '10' on all three factors." Which rating error is being committed? Halo Recency Central tendency Leniency