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random-walk technique
random-walk technique A method of random sampling in which the number of paces between sample points is determined by random numbers, usually drawn from random-number tables, and from each sample point a right-angle turn determines the direction of the next point, a coin being tossed to decide whether to turn left or right. Where several sets of samples are taken it is best to start each set from the same point; if this is impossible it is important that the range of numbers from which a selection is made must allow each point within the study to have an equal chance of being sampled each time.
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Cite this article
MICHAEL ALLABY. "random-walk technique." A Dictionary of Ecology. 2004. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "random-walk technique." A Dictionary of Ecology. 2004. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O14-randomwalktechnique.html MICHAEL ALLABY. "random-walk technique." A Dictionary of Ecology. 2004. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O14-randomwalktechnique.html |
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random-walk technique
random-walk technique A method of sampling in which the number of paces between sample points is determined by random numbers, usually drawn from random-number tables, and from each sample point a right-angle turn determines the direction of the next point, a coin being tossed to decide whether to turn left or right. Where several sets of samples are taken it is best to start each set from the same point; if this is impossible it is important that the range of numbers from which a selection is made must allow each point within the study to have an equal chance of being sampled each time.
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Cite this article
MICHAEL ALLABY. "random-walk technique." A Dictionary of Zoology. 1999. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "random-walk technique." A Dictionary of Zoology. 1999. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O8-randomwalktechnique.html MICHAEL ALLABY. "random-walk technique." A Dictionary of Zoology. 1999. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O8-randomwalktechnique.html |
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random-walk technique
random-walk technique A method of random sampling in which the direction taken and the distance moved between sample points is determined by random numbers, drawn most usually from random-number tables.
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Cite this article
MICHAEL ALLABY. "random-walk technique." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. 31 May. 2012 <http://www.encyclopedia.com>. MICHAEL ALLABY. "random-walk technique." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. (May 31, 2012). http://www.encyclopedia.com/doc/1O7-randomwalktechnique.html MICHAEL ALLABY. "random-walk technique." A Dictionary of Plant Sciences. 1998. Retrieved May 31, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O7-randomwalktechnique.html |
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