[Code of Federal Regulations] [Title 45, Volume 4] [Revised as of October 1, 2008] From the U.S. Government Printing Office via GPO Access [CITE: 45CFR1356 App C] [Page 341-342] TITLE 45--PUBLIC WELFARE CHAPTER XIII--OFFICE OF HUMAN DEVELOPMENT SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES PART 1356_REQUIREMENTS APPLICABLE TO TITLE IV-E Sec. Appendix C to Part 1356--Calculating Sample Size for NYTD Follow-Up Populations 1. Using Finite Population Correction The Finite Population Correction (FPC) is applied when the sample is drawn from a population of one to 5,000 youth, because the sample is more than five percent of the population. [[Page 342]] [GRAPHIC] [TIFF OMITTED] TR26FE08.000 (Py)(Pn), an estimate of the percent of responses to a dichotomous variable, is (.50)(.50) for the most conservative estimate. [GRAPHIC] [TIFF OMITTED] TR26FE08.001 Acceptable level of error = .05 (results are plus or minus five percentage points from the actual score) Z = 1.645 (90 percent confidence interval) [GRAPHIC] [TIFF OMITTED] TR26FE08.002 N = number of youth from whom the sample is being drawn 2. Not Using Finite Population Correction The FPC is not applied when the sample is drawn from a population of over 5,000 youth. [GRAPHIC] [TIFF OMITTED] TR26FE08.003 [73 FR 10372, Feb. 26, 2008]