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Clytze9金虫 (小有名气)
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[求助]
关于投稿之后要求填写的checklist中的统计学问题 已有1人参与
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1. Sample size Describe how sample size was determined. （Describe the statistical methods that were used to predetermined sample size or if no sample-size calculation was performed, describe how sample sizes were chosen and provide a rational for why these sample sizes are sufficient） 2. 如何说明文章中用的统计学方法比较合理？ 有没有统计学方面的大神?关于sample size 和统计学方法，有没有推荐的文献什么的？ 谢谢啦！ |
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ipublish_SCI 
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I do not know what your experiments are about. I do not know if they refer to dimensions of samples or if this is an animal or biomedical study and you needed to know how many animals you will need to use. So yes, you may need to calculate statistical power. I again should tell you that if you use now g*power (after you conducted the experiment) to find out that your sample size should have been, then it's a little bit of a problem. If you need further comments on this you can contact me here by message in the forum. Hope this comment helps for you. Best regards  |
8楼2017-08-25 23:14:53
2楼2017-08-25 10:52:13
ipublish_SCI
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感谢参与，应助指数 +1
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Yes, there are. But we do not know about your experiments. But if you did not use statistical analysis to know sample size BEFORE conducting the experiments, then you cannot do it A POSTERIORI. What you can do is to explain you decision about the sample size: that is , why? |
3楼2017-08-25 11:02:33
holypower
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Clytze9(liouzhan654代发): 金币+1, 感谢交流 2017-08-25 13:36:57
Clytze9(liouzhan654代发): 金币+1, 感谢交流 2017-08-25 13:36:57
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根据80%统计检验力，0.05显著水平，以及估计的效应量（比如中等0.25），就可以算出至少多少样本量。你搜索G*POWER程序吧！输入参数自动计算 发自小木虫Android客户端 |
» 本帖已获得的红花（最新10朵）
Clytze94楼2017-08-25 12:37:37