## Ecological MethodologyThis coherent text translates the methods of statisticians into "ecological English" so that students may readily apply these methods to the real world. |

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Thomas (1997) discussed retrospective power analysis. The key point you

should remember is that there are four variables affecting any statistical inference

: Sample size 4A

**Probability**of a L J

**Probability**of a Type I error a |" T Type II

error 8 W ...

Statisticians always assume that a sample is taken according to the principles of

**probability**sampling, as follows: 1. Define a set of distinct samples S1, S2, S3 ...

in which certain specific sampling units are assigned to S1, some to S2, and so ...

There are two basic choices that you must make in selecting a multistage

sampling design model: whether to choose the primary sampling units with equal

**probability**or with

**probability**proportional to size (PPS). For example, in Figure

8.6 we ...

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Ecological Methodology Charles J. Krebs,CHARLES L. KREBS,Professor of Zoology Charles J Krebs No preview available - 1999 |