Enhancement of systematic sampling for clinical survey: systematic sampling with consecutive approach / Mohamad Adam Haji Bujang

Survey is a one of the common primary data collection approaches in
research in various fields including the clinical field. Findings from
clinical surveys are important because recommendations from the
findings will have a direct impact towards public’s health. Data collection
process in clinical survey usually involves an ordered sampling frame
and has become very challenging for clinical researchers, who need to
handle multiple tasks in their clinical service whereby the clinical service
is their top priority. Therefore, due to time constraints, the general
practice of data collection in clinical survey is to adopt non-probability
sampling such as consecutive sampling. The consequence of this kind of
practice would produce results that can be invalid since the results could
be influenced by sampling bias. In order to reduce sampling bias and to
obtain more precise results is to promote the use of probability sampling
technique in a clinical survey.