Sample Size Determination

3.4.1  Sample Size A sample is a smaller (but hopefully representative) collection of units from a population used to determine truths about that population (Field, 2005). Sample size determination involves establishing the number of observations to include in a statistical sample while ensuring representativeness. Determination of sample size differs depending on the research design. For […]

Sample Size Determination Using Krejcie and Morgan Table

The ever increasing need for a representative statistical sample in empirical research has created the demand for an effective method of determining sample size.  To address the existing gap, Krejcie & Morgan (1970) came up with a table for determining sample size for a given population for easy reference.   Table 1: Table for Determining […]