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lecture11 - Field Experiments July 13 What is an...

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Field Experiments July 13 1 What is an experiment? What is an experiment? Experiment a procedure used to test a hypothesis by manipulating a factor Controlled Experiment an experiment in which the effect of a factor is measured by comparing subjects (or units) with and without that factor or with different levels of that factor Factor present (treatment) Factor absent (control) Factor High Factor Low Factor Medium Design A: Design B: Replicated Controlled Experiment a controlled experiment with replicates of each treatment. Factor present (treatment) Factor absent (control) Factor present (treatment) Factor absent (control) Factor present (treatment) Factor absent (control) Types of Ecological Experiments Types of Ecological Experiments Lab – conducted in a controlled environment (usually indoors) where all factors are held constant except the one(s) of interest Field – conducted in the organisms’ natural environment where all factors are allowed to vary naturally except the manipulated one(s)
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This note was uploaded on 01/06/2010 for the course EVE 101 taught by Professor Strong,d during the Spring '08 term at UC Davis.

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lecture11 - Field Experiments July 13 What is an...

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