:orphan: .. _ahelp_stouffer: ******** stouffer ******** .. contents:: :local: | .. code-block:: none Program 'stouffer': meta-analysis using Stouffer's method Gang Chen gangchen@mail.nih.gov March 13, 2025 SSCC/NIMH/NIH/DHHS Usage: stouffer -prefix output.file.name -input here.is.a.list.of.input.files Input files contain Z-statistic values, typically derived from multiple studies. T-statistic values may also be used if the degrees of freedom are sufficiently large (e.g., ≥30); otherwise, they should first be converted to Z-statistics. The output is a Z-statistic reflecting the pooled evidence across studies. The sample sizes for the individual studies are assumed to roughly equal.