cohen的書比較不好找，不過這本也可以給大家參考囉。

Power Analysis for Experimental Research
A Practical Guide for the Biological, Medical and Social Sciences
R. Barker Bausell
University of Maryland, Baltimore
Yu-Fang Li
Puget Sound Healthcare System, Seattle
contents:
1 The conceptual underpinnings of statistical power 1
2 Strategies for increasing statistical power 16
3 General guidelines for conducting a power analysis 36
4 The t-test for independent samples 50
5 The paired t-test 57
6 One-way between subjects analysis of variance 71
7 One-way between subjects analysis of covariance 111
8 One-way repeated measures analysis of variance 179
9 Interaction effects for factorial analysis of variance 239
10 Power analysis for more complex designs 302
11 Other power analytic issues and resources for addressing them 329