What must be considered here is whether librarians really want studies that probe into adequacies and inadequacies of the library/user interface. Several years ago two investigations were conducted that raised serious questions about the accuracy and thoroughness of reference information provided by public libraries . One would think that these sober findings would prompt every library to reexamine itself, but few such reviews have occasional hard-headed administrator, professional staff member have resisted. One can only speculate about the reasons for this. One possibility is that most librarians are convinced that their reference service is accurate and thorough ; but if this is the case, why not put it to the test ? Another possibility is that librarians are uncertain about the success of their ministrations to users ,and simply do not want to find out.