Sentence:  The parent was asked to describe the child 's typical behavior in certain standard situations in which there was an opportunity to observe tendencies toward <WSD>perfectionism</WSD> in demands upon self and others , irrational conformity to rules , orderliness , punctuality , and need for certainty . 
Meaning of the word marked with <WSD> tags:  a disposition to feel that anything less than perfect is unacceptable