Appraisals and bracketing

[Pablo Pozo]

Looking for some insight on bracketing when it comes to appraisals. I have just heard this recently and I am curious if this is accurate....when it comes to establishing the overall value of a property, the appraiser looks at the range of comparables and the new appraised value that is given to the subject property cannot be higher than what the highest comparable value is. Is this accurate?

I appreciate everyone's insight