Sex Differences in Variability Across Public-Use Datasets

A single generated public bundle now drives Home, Results, Datasets, and README directly from the normalized cross-dataset table. Counts, tables, and rankings all come from the same source of truth.

Headline Findings

The current headline layer contains 67 confirmatory cells across 17 live datasets. Here, confirmatory means the pre-designated core trait rows used for the main headline claim, not the secondary or exploratory rows. Male-greater variability appears in 85%, while the strongest counterexample remains visible rather than being averaged away.

67
Headline confirmatory cells
85%
Male-greater within headline cells
263
Supporting inferential cells

The strongest male-greater confirmatory cell is Numeracy in PIAAC cycle 2, age 60-65, with VR 1.46x.

Strongest counterexample

Reading achievement in ECLS-K:2011, Fall Kindergarten 2010, age K, shows VR 0.10x with 95% CI 0.10x to 0.10x. The public summary keeps this reversal explicit.

Headline Forest Plot

Each point is a headline-eligible confirmatory cell, meaning a core pre-designated row that is allowed into the main claim, with whiskers on the variance-ratio scale.

Dataset-Trait Medians

Median variance ratios by dataset-family combination show the distribution without relying only on the most extreme rows.