
Cochran's Sampling Techniques
Cochran's sampling techniques refer to methods for selecting a representative subset from a larger population, especially in survey research. These techniques ensure that the sample accurately reflects the population's characteristics, making the results reliable. Cochran’s approach emphasizes systematic strategies, such as determining the optimal sample size based on desired accuracy and variability, and applying sampling methods that minimize bias. Essentially, it provides researchers with a structured way to gather data efficiently and accurately, ensuring conclusions drawn from the sample can be confidently extended to the entire population.