Slovin's Formula

            Most commonly used formula to determine minimum allowable sample size from a bigger population. The formula take into consideration 3 important elements of minimum acceptable PRECISION, allowable ERROR, and the total number of POPULATION. The formula is very straight forward and easy to compute. Here is the formula:

n      =           N          

                         (1+ Ne²)

Where:

          n        -        Sample size

          1        -        Constant

          N       -        Total population

          e        -        Error tolerance

• Usage: SAMPLE SIZE COMPUTATION
• Citation (Source):*here is the book where the formula can be found, most thesis and dissertation requires a citation for formulas used so you can simple use this book reference as your citation (in APA citation format)

                Galero-Tejero, E. (2011). A Simplified Approach to Thesis and Dissertation Writing (pp. 43-44). Mandaluyong City: National Book Store.