A parasite-prone peacock, for example, is more likely to be discovered by a discerning peahen because parasite infestation demonstrates itself as damage to plumage (which is more noticeable given the peacock's bright coloration).
An appraisal is a judgment of something, especially an estimate of how much it's worth. Usually you need an expert to give an official appraisal. If you were selling a house, you'd need an expert in real estate to give an appraisal of how much it's worth â that's an official estimate of how much you could sell it for. But this word can also be used in other less formal situations that call for a judgment or opinion of some sort.
Definition of Cognitive Appraisal. Imagine that you get called into your boss' office and he tells you that they need to cut your schedule down to part-time for the next few months. Your boss doesn't offer any explanation or further information but does express his apologies before you go back to your desk.