Sentence:  While we had expected that <WSD>compulsive</WSD> children in the unstructured school setting would have difficulty when compared to those in the structured , we were surprised to find that the achievement of the high compulsives within the schools where the whole-word method is used in beginning reading compares favorably with that of the low compulsives . 
Meaning of the word marked with <WSD> tags:  caused by or suggestive of psychological compulsion