Consecutive sampling: Difference between revisions

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In the [[design of experiments]], '''consecutive sampling''', also known as '''total enumerative sampling''',<ref name="Suresh2014">{{cite book|last1=Suresh|first1=Sharma|title=Nursing Research and Statistics|date=2014|publisher=Elsevier Health Sciences|isbn=9788131237861|page=224|url=https://books.google.com/books?id=9RyMBgAAQBAJ&dq=%22consecutive+sampling%22&pg=PA224|accessdate=29 September 2017|language=en}}</ref> is a sampling technique in which every subject meeting the criteria of inclusion is selected until the required sample size is achieved.<ref name="Schuster2005">{{cite book|last1=Schuster|first1=Daniel P.|last2=Powers (MD.)|first2=William J.|title=Translational and Experimental Clinical Reseah Research|date=2011|publisher=John Wiley & Sons|isbn=9781118292969|url=https://books.google.com/books?id=t729l9LE9NUC&dq=Consecutive+sampling&pg=PT46|accessdate=29 September 2017|language=en}}</ref> Along with [[convenience sampling]] and [[snowball sampling]], consecutive sampling is one of the most commonly used kinds of [[nonprobability sampling]].<ref name="Broeck2013">{{cite book|last1=Broeck|first1=Jan Van den|last2=Brestoff|first2=Jonathan R.|title=Epidemiology: Principles and Practical Guidelines|date=2013|publisher=Springer Science & Business Media|isbn=9789400759893|pages=178–179|url=https://books.google.com/books?id=waBEAAAAQBAJ&dq=%22consecutive+sampling%22+consecutive&pg=PA178|accessdate=29 September 2017|language=en}}</ref> Consecutive sampling is typically better than convenience sampling in controlling sampling bias.<ref name="Polit2010">{{cite book|last1=Polit|first1=Denise F.|last2=Beck|first2=Cheryl Tatano|title=Essentials of Nursing Research: Appraising Evidence for Nursing Practice|date=2010|publisher=Lippincott Williams & Wilkins|isbn=9781609130046|pages=311–312|url=https://books.google.com/books?id=7GtP8VCw4BYC&dq=%22consecutive+sampling%22&pg=PA312|accessdate=29 September 2017|language=en}}</ref>

{{Underlinked|date=September 2015}}

Care needs to be taken with consecutive sampling, however, in the case that the quantity of interest has temporal or seasonal trends.<ref name="Schuster2005" /> Bias can also occur in consecutive sampling when consecutive samples have some common similarity, such as consecutive houses on a street.<ref name="Indrayan2016">{{cite book|last1=Indrayan|first1=Abhaya|last2=Holt|first2=Martin P.|title=Concise Encyclopedia of Biostatistics for Medical Professionals|date=2016|publisher=CRC Press|isbn=9781315355573|url=https://books.google.com/books?id=p-GVDQAAQBAJ&dq=%22consecutive+sampling%22&pg=PT286|accessdate=29 September 2017|language=en}}</ref>

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In the [[design of experiments]], '''consecutive sampling''' is a sampling technique in which every subject meeting the criteria of inclusion is selected till the required sample size is achieved.<ref>https://books.google.co.in/books?id=C7pZftbI0ZMC&pg=PA46&dq=Consecutive+sampling&hl=en&sa=X&ei=PlszVe6qCJGTuASnioHgDw&redir_esc=y#v=onepage&q=Consecutive%20sampling&f=false</ref><ref>https://books.google.co.in/books?id=t729l9LE9NUC&pg=PT46&dq=Consecutive+sampling&hl=en&sa=X&ei=PlszVe6qCJGTuASnioHgDw&redir_esc=y#v=onepage&q=Consecutive%20sampling&f=false</ref> Consecutive sampling technique involves selecting all individuals who agree to participate, provided they meet pre-extablished criteria, until the number of subjects desired has been recruited. For example, the author of this text once conducted a study of the verbal memory of adult dyslexics who were recruited by means of several techniques including appeals through newspaper and radio advertising. In order to quality as subjects, several criteria had to be satisfied with respect to age, IQ level, educational achievement, history of remediation, mental and physical status, and scores on standardized tests of reading ability, among other factors. Consecutive sampling can be highly useful when the available subject pool is limited or when using selection criteria so stringent as to reduce the number of subjects to a point that threatens the generality of findings. Although consecutive sampling methods are typically stronger than other nonprobability methods in controlling sampling bias, such confounding influence can not be ruled out. Response rate, the proportion of the subjects willing to participate of those selected, may also influence the validity of inferences. For instance, subjects who agree to participate may have different motivations or life circumstances than those who do not.[3]

==References==

{{Reflist}}

{{reflist}}<nowiki>3. http://users.clas.ufl.edu/sgriff/spa6300.html</nowiki>

[[Category:Sampling techniques]]