Results of this study evaluating library reference service indicate a statistically significant difference at the .05 level between obtrusive and unobtrusive evaluation methods. Library staff answer a greater proportion of questions correctly when they are aware of being evaluated. The 30 questions used, a report form, and references are included.…

Twenty-one libraries in Library Computer System participated in collection overlap study. Findings of random sample representing 1% of each collection indicate that high percentage of titles, 69.4%, occurred only once in network and that percentage of each library's collection unique to that library, ranged from 6.1% to 68.4%. (21 references) (EJS)