![]() ![]() Here is a picture of Stankovic I camp in Macedonia. Just calculate the sampling interval, choose a random number between 1 and the sampling interval, then start counting the units from one end of the population. If the actual sampling units, such as houses or shelters, are arranged in order, you can count down the units in the field. Systematic random sampling can also done without a list. The actual names in the column entitled NAME have been removed to preserve confidentiality. Because we were doing a survey of adolescents, we used the field YOB (year of birth) to select only those camp residents who were 10-19 years of age at the time of the survey. The original registry spreadsheet listed everyone living in the camp. This is a part of the registry from a camp in south-eastern Nepal. Systematic random sampling can be done with any list. This is what your final selection should look like: If you have not, you have counted wrong or miscalculated the sampling interval. Note that when you reach the end of the list, you should have selected your desired number of households. For example, the second selected household is 3 + 4, or #7. We then count down the list starting with household #3 and select each 4 th household. We then select a number between 1 and the sampling interval from the random number table (in this case 3). We first calculate the sampling interval by dividing the total number of households in the population (40) by the number we want in the sample (10). Formulating conclusions and recommendationsĮxample of systematic random sampling of 10 households from a list of 40 households.Nutrition - Indicators and their measurement.Nutrition - Introduction and background.Mortality - Indicators and their measurement.Surveys - Resources required for surveys.Surveys - Sampling error, bias, accuracy, precision, & sample size. ![]() Choosing between simple and systematic sampling - Quiz.Surveys - Description of sampling methods. ![]()
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