This performance appraisal method is based on factors that can technically be observed. For example, in a customer service job one might consider the length of calls, the number of calls dealt with, and the time taken on breaks. What is this method called?

Electronic Performance Monitoring $($EPM$)$

Checklist

Behaviorally Anchored Rating Scales $($BARS$)$

Critical Incident Method

Behavioral Observation Scales $($BOS$)$