MetaSyn Statistical Converter 作者： MetaSyn Academy
Meta-analysis statistical converter for SE, sampling variance, Wald confidence intervals, OR, RR, HR and rate ratios. Transparent formulas; calculations stay local.
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MetaSyn Statistical Converter is a free, browser-local statistical conversion tool for meta-analysis and evidence synthesis.
It helps researchers transform selected already-reported statistical quantities into supported meta-analysis-ready representations while keeping the formula, analysis scale, assumptions, warnings and uncertainty source visible.
Supported operations in version 1.0.4
• Standard error (SE) → sampling variance
• Sampling variance → SE
• Two-sided Wald confidence interval → SE + sampling variance
• OR, RR, HR or rate ratio + two-sided Wald CI → natural-log effect + SE + sampling variance
• Ratio estimate ↔ natural-log ratio estimate
• Natural-log ratio + SE or sampling variance → ratio estimate + Wald confidence interval
Methodological transparency
• Shows the calculation and analysis scale
• Requires explicit acknowledgement for supported Wald-CI reconstructions
• Warns when interval asymmetry may be incompatible with the assumed Wald form
• Keeps full-precision values internally and separates display rounding from calculation
What it does not do
• It does not select the appropriate effect measure for you
• It does not calculate effect sizes from raw 2×2 or continuous-group study data
• It does not estimate means or SDs from medians, ranges or IQRs
• It does not treat t-based, profile-likelihood, exact, bootstrap, Bayesian or one-sided confidence intervals as ordinary Wald intervals
• It does not reconstruct uncertainty generically from P, t, F or z statistics in version 1
Validation
Version 1.0.4 uses the same validated statistical engine as the Chrome/Edge release and passed the predefined 220-case suite: 200 direct cases plus 20 cross-method/round-trip cases. Passing this suite is evidence of predefined test performance, not a universal accuracy guarantee.
Privacy
Calculations run locally in Firefox. The extension has no account system, analytics, advertising, backend API, browsing-history access, content scripts or host permissions, and it does not save calculation history.
Methodology and validation:
https://metasyn.academy/free-systematic-review-templates/meta-analysis-statistical-converter/
Privacy policy:
https://metasyn.academy/free-systematic-review-templates/meta-analysis-statistical-converter/privacy/
Academic support:
https://metasyn.academy/contact-support-faq/
MetaSyn Statistical Converter is an independent MetaSyn Academy research tool. It is not affiliated with or endorsed by Cochrane, the metafor project, Mozilla, or any publisher or standards organization.
It helps researchers transform selected already-reported statistical quantities into supported meta-analysis-ready representations while keeping the formula, analysis scale, assumptions, warnings and uncertainty source visible.
Supported operations in version 1.0.4
• Standard error (SE) → sampling variance
• Sampling variance → SE
• Two-sided Wald confidence interval → SE + sampling variance
• OR, RR, HR or rate ratio + two-sided Wald CI → natural-log effect + SE + sampling variance
• Ratio estimate ↔ natural-log ratio estimate
• Natural-log ratio + SE or sampling variance → ratio estimate + Wald confidence interval
Methodological transparency
• Shows the calculation and analysis scale
• Requires explicit acknowledgement for supported Wald-CI reconstructions
• Warns when interval asymmetry may be incompatible with the assumed Wald form
• Keeps full-precision values internally and separates display rounding from calculation
What it does not do
• It does not select the appropriate effect measure for you
• It does not calculate effect sizes from raw 2×2 or continuous-group study data
• It does not estimate means or SDs from medians, ranges or IQRs
• It does not treat t-based, profile-likelihood, exact, bootstrap, Bayesian or one-sided confidence intervals as ordinary Wald intervals
• It does not reconstruct uncertainty generically from P, t, F or z statistics in version 1
Validation
Version 1.0.4 uses the same validated statistical engine as the Chrome/Edge release and passed the predefined 220-case suite: 200 direct cases plus 20 cross-method/round-trip cases. Passing this suite is evidence of predefined test performance, not a universal accuracy guarantee.
Privacy
Calculations run locally in Firefox. The extension has no account system, analytics, advertising, backend API, browsing-history access, content scripts or host permissions, and it does not save calculation history.
Methodology and validation:
https://metasyn.academy/free-systematic-review-templates/meta-analysis-statistical-converter/
Privacy policy:
https://metasyn.academy/free-systematic-review-templates/meta-analysis-statistical-converter/privacy/
Academic support:
https://metasyn.academy/contact-support-faq/
MetaSyn Statistical Converter is an independent MetaSyn Academy research tool. It is not affiliated with or endorsed by Cochrane, the metafor project, Mozilla, or any publisher or standards organization.
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