STEPS IN SAMPLING PROCESS 5 stepmodel.pptx
- 1. STEPS IN SAMPLING PROCESS
- 2. 1. Identify the Target population ⢠Target population refers to the group of individuals or objects to which researchers are interested in generalizing their findings. ⢠The target population is the group of individuals or objects, from which the sample might be taken. ⢠A well - defined population reduces the probability of including the participants who all are not suitable for the research objective.
- 3. 2. Select a sampling frame ⢠While selecting sample units from the population, it is sometimes desirable to choose a list of the population from which the researcher select units. ⢠Sampling frame is the group of individuals or objects from which researcher will draw his/her sample. ⢠It is the list of all units in a study population from which the sample is taken.
- 4. 3. Specify the sampling technique ⢠Sampling can be done through probability (random selection) or non- probability (non-random) technique. ⢠Now, if the sampling frame is approximately the same as the target population, random selection may be used to select sample. ⢠On the other hand, if the sampling frame does not really represent the target population, the researcher may choose non-random selection which can give at least an idea about the population in his nearby area.
- 5. 4. Determine the sample size ⢠The sample size is simply the number of units in the sample. ⢠Sample size determination depends on many factors such as time, cost, facility. In general, larger samples are better, but they also require more resources. ⢠larger sample sizes reduce sampling error but at a decreasing rate. Several statistical formulas are available for determining sample size.
- 6. 5. Execute the sampling plan ⢠Once population, sampling frame, sampling technique and sample size are identified, researcher can use all that information to choose his/her sample. ⢠This is the final step in the sampling process, where the actual selection of the sample elements is carried out. ⢠This step involves implementing the sampling plan to select the sampling plan to select a sample required for the survey.