THE FEUTEX TOOLKIT

Inverse-Variance Two-Study Pooling

Combine two independent effect estimates using inverse-variance weighting.

Statistics workspace● Runs in your browser

01 Your input

Study one effectnumberStudy one standard errornumberStudy two effectnumberStudy two standard errornumber

02 Your result

View or copy raw result data

Result data

Formula

Pooled = (e1/s1**2+e2/s2**2)/(1/s1**2+1/s2**2); Standard Error = sqrt(1/(1/s1**2+1/s2**2)); Weight One = (1/s1**2)/(1/s1**2+1/s2**2)

Sources and model references

Made for real tasks

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

Enter study one effect, study one standard error, study two effect, study two standard error.
Use the displayed units and confirm the model assumptions.
Calculate and compare the outputs against your input scenario.

{
  "e1": 0.2,
  "s1": 0.1,
  "e2": 0.4,
  "s2": 0.2
}

Fixed common effect model. Ratio outcomes must be supplied on the log scale; correlated studies or heterogeneity require another model.

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.