Krejcie Morgan 1970 Table
The table is applicable to any population of a defined finite size.
Krejcie morgan 1970 table. Krejcie and daryle w. These formulas for determining the sample size provide identical sample sizes in cases where the researcher adjusts the tabulated value based on the size of the population which should be less than or equal to 120. Foundations for sample size determination primary variables of measurement. However these two formulas are used more than any others.
In this study krejcie and morgan s 1970 table was used to determine the sample size. Krejcie r v morgan d w. Articles citing this one. Krejcie and morgan s sample size determination table population sample 10 10 15 14 20 19 25 24 30 28 35 32 40 36 45 40 50 44 55 48 60 52 65 56 70 59 75 63 80 66 85 70 90 73 95 76 100 80 110 86 source.
Based on the formula the total number of registered nurses working in private hospitals located in bangkok is 5 803 ministry of public health 2008. Sample size estimation using krejcie and morgan and cohen statistical power analysis. Krejcie and morgan s 1970 developed the formulas for determining the sample size for categorical types of data. 3 607 610 download citation.
To address the existing gap krejcie morgan 1970 came up with a table for determining sample size for a given population for easy reference. Krejcie and morgan 1970 have produced a table for determining required sample size given a finite population. Thus 361 registered nurses were selected as a sample. Adapted from krejcie and morgan 1970 3 4 1 exclusion criteria.
The krejcie and morgan 1970 table was chosen because the calculation for. This preview shows page 3 5 out of 5 pages. Concise table of three place probabilities of the symmetric binomial cumulative distribution fo. Educational and psychological measurement 30 607 610.
Course title jour 332. The ever increasing need for a representative statistical sample in empirical research has created the demand for an effective method of determining sample size. Other formulas are available. The widely circulated sample size tables based on krejcie and morgan s 1970 formula as they assume an alpha of 05 and a degree of accuracy of 05 discussed later.