small sample bias的意思|示意

No baseline data were found to be related to the prognosis due to a small sample size and selection bias.

因小样本及选择偏倚，无基线资料与预后相关。

However, there's bias in the report. The research with small sample size negates a generation of the only children is an overgeneralization.

但是，报告也有偏颇之处，小样本量的研究并不能以偏概全，从而否定一代独生子女。

We guess this is due to the small sample bias and the short time span of our data.

我们认为这是因为小样本误差和数据所在时间跨度较短所造成的。