Krejcie And Morgan Sampling Method
The sample size of the study was determined according to the formula used by krejcie and morgan 17 as shown in figure 2.
Krejcie and morgan sampling method. Estimation of sample size in research using krejcie and morgan is a commonly employed method. The ever increasing need for a representative statistical sample in empirical research has created the demand for an effective method of determining sample size. The sampling method used in this study is the probability sampling method which is random sampling. One of the most used method is the krejcie and morgan sampling method.
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. Krejcie robert v morgan daryle w in educational and psychological measurement. Confidence interval confidence level. Sample size calculator terms.
A probability sampling define as one in which every unit in the population has a. In this article i wanna explain about krejcie and morgan method. The confidence interval also called margin of error is the plus or minus figure usually reported in newspaper or television opinion poll results. Sampling methods in research methodology.
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. For example if you use a confidence interval of 4 and 47 percent of your sample picks an answer you can be sure that if you had asked the question of the entire relevant. To address the existing gap krejcie morgan 1970 came up with a table for determining sample size for a given population for easy reference. Sample size estimation using krejcie and morgan and cohen statistical power analysis.
Krejcie and morgan 1970 used the following formula to determine sampling size. Determining sample size for research activities.