Random sampling error has been found to be the major contributor to total error,whereas non-sampling error is relatively small in magnitude.

Question

Quizplus · Accepted Answer

Non-sampling error can often be a significant source of total error in surveys and research, potentially even larger than sampling error, as it encompasses all other errors in the data collection process not related to the sample size, including measurement errors, processing errors, and coverage errors.

Random Sampling Error Has Been Found to Be the Major