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field_methods:step-pin_transect_method

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field_methods:step-pin_transect_method [2012/03/08 15:28]
jgillan
field_methods:step-pin_transect_method [2013/02/05 10:30] (current)
gtucker
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 ===== Advantages and Limitations ===== ===== Advantages and Limitations =====
-The main advantage of the step-pin method over the step-point method is that it decreases the potential for bias by moving the pin away from the observer and by having it blindly lowered to the ground. Whether intentional or not, it is very hard for observers to place their feet on the ground without any regard to the vegetation or other surfaces on the ground. This introduces bias into the method. By placing the pin in front of the observer and not looking at it while it is being lowered, it becomes less critical where the observer'​s feet land; thus reducing bias in the measurements. The step-pin method, though, ​cam still be biased in situations like dense or thick vegetation, or where large shrubs or trees (especially those with thorns) are encountered.+The main advantage of the step-pin method over the step-point method is that it decreases the potential for bias by moving the pin away from the observer and by having it blindly lowered to the ground. Whether intentional or not, it is very hard for observers to place their feet on the ground without any regard to the vegetation or other surfaces on the ground. This introduces bias into the method. By placing the pin in front of the observer and not looking at it while it is being lowered, it becomes less critical where the observer'​s feet land; thus reducing bias in the measurements. The step-pin method, though, ​can still be biased in situations like dense or thick vegetation, or where large shrubs or trees (especially those with thorns) are encountered.
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 For additional advantages and limitations,​ see the [[field_methods:​step-point_transect_method|]] wiki page. For additional advantages and limitations,​ see the [[field_methods:​step-point_transect_method|]] wiki page.
field_methods/step-pin_transect_method.txt ยท Last modified: 2013/02/05 10:30 by gtucker