id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
crl-14757	Bustion, Marifran; Eltinge, John; Harer, John	On the Merits of Direct Observation of Periodical Usage: An Empirical Study	1992-11-01	14	.pdf	application/pdf	7020	333	54	To reduce the effect of observer fatigue on recorded use counts, no stu- dent worker observed aisles for more than two hours at a time. Studies addressing concerns of use studies include Robert N. Broadus, The Measure- ment of Periodicals Use, Serials Review 11:57-61 (Summer 1985); Maurice B. Line and Alexander Sandison, Practical Interpretation of Citation and Library Use Studies, College & Research Libraries 36:393-96 (Sept. 1975);	cache/crl-14757.pdf	txt/crl-14757.txt