Krejcie And Morgan 1970 Formula
Based on the krejcie and morgan s sample size calculation which same as using the krejcie and morgan s sample size determination table.
Krejcie and morgan 1970 formula. Determining sample size for research activities. The krejcie and morgan s sample size. Krejcie morgan formula for sample size calculation the ever increasing need for a representative statistical sample in empirical research has created the dema. Based on krejcie and morgan s 1970 table for determining sample size for a given population of 500 a sample size of 217 would be needed to represent a crosssection of the population.
Educational and psychological measurement 30 607 610. Krejcie r v morgan d w. Influence of trainee teacher philosophy about teaching and learning on integration of computer technology into future teaching practices. Estimation of sample size in was based on krejcie and morgan 1970 formula as below.
One of the most used method is the krejcie and morgan sampling method. Determining sample size for research activities robert v. University the ever increasing demand for research has created a need for an efficient method of determining the sample size needed to be representative of a given population. To address the existing gap krejcie morgan 1970 came up with a table for determining sample size for a given population for easy reference.
To simplify the process of determining the sample size for a finite population krejcie morgan 1970 came up with a table using sample size formula for finite population. Krejcie university of minnesota duluth daryle w. The tea processing factories were clustered in terms of departments units and in each. Krejcie and morgan s 1970 developed the formulas for determining the sample size for categorical types of data.
However it is important for a researcher to consider whether the sample size is adequate to provide enough accuracy to base decisions on the findings with confidence. Sample size estimation using krejcie and morgan and cohen statistical power analysis. S x 2np 1 p div. Has been cited by the following article.
The ever increasing need for a representative statistical sample in empirical research has created the demand for an effective method of determining sample size.