id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
crl-14880	Hernon, Peter	Determination of Sample Size and Selection of the Sample: Concepts, General Sources, and Software (Research Note)	1994	10	.pdf	application/pdf	4919	294	57	17 Peter Hernon and Charles R. McClure modify Tuckman's formula and ex- ample.18 Examples of other formulae in- clude ones by Hubert M. Blalock, Jr., Robert Swisher and Charles R. McClure, Charles H. Busha and Stephen P. Harter, Margaret Slater, and I. S. Simpson.19 M. Carl Drott presents a table for de- termining sample size and discusses three examples for the selection of a sample: (1) one for examining library records, (2) one for studying the percep- tions of library patrons about library services, and (3) one for investigating the condition of books in the collection.20 Cheryl Metoyer-Duran, in an appendix, March 1994 guides readers conducting readability stu- dies in the selection of paragraphs from published and unpublished works.21 Powell, Hernon, Slonim, Isaac and Mi- chael, and Cohen, among others, reprint tables of sample sizes for a given popu- lation.22 However, such tables may rep- resent a rather simplistic, and quite possibly conservative, method for ascer- taining a sample size. This article provides an introduction to sampling, determination of sample size, and selection of the actual sample.	cache/crl-14880.pdf	txt/crl-14880.txt