What is your performance rating scale? Does your organization have rating distribution guidelines?

5 point scale. No forced distribution.

Yes 1-4 across L rating demonstrating our leadership behaviors and G rating Goals.

1-5 rating scale, utilizing bell curve

Rating 1-5. And We use a Bell Curve to manage final outcomes

We are transitioning from a 5pt rating scale to a 4 rating system to force greater distinction.  We've found with an odd system that we end up with a pool in the middle we are looking to differentiate the high performers and believe this will allow us to do that.  At the same time we are implementing an assessment of what and how - employees will be evaluated against what they accomplished - goals and how they accomplished it (the Values) resulting in an overall performance rating.  There will be 4 overall performance ratings however because we are evaluating "what" and "how" we will be able to construct a calibration matrix for assessment similar to talent assessment.