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Corrections log: what Probative got wrong and when it was fixed

A dated public log of corrections to Probative's rules library, studies and pages, newest first, with what changed and where. Report an error by email.

Updated October 25, 2026

When we find a mistake, we fix it on the page, say so here with the date, and say what changed. We never change a published number quietly. An error in our favor is logged exactly like one against us. To report an error, email hello@probativegrowth.com with the page and what is wrong.

Corrections, newest first

: Rhode Island files lawyer ads

Our library said Rhode Island had no filing rule, but Rule 7.2(b) says a copy of each print, radio and TV ad goes to Supreme Court Disciplinary Counsel before or within 48 hours of first use.

We fixed the rules library, the lawyer advertising rules guide, the states hub and the affected state pages. They now count seven states that require lawyers to file ads, not six. See the Rhode Island page and the filing-fee study.

: Nevada’s period for keeping ad copies

We had listed a 4-year period for keeping copies of ads in Nevada, but the current Rule 7.2, amended in 2018, has no such clause.

We removed it from the rules library and from the Nevada page. See the Nevada page.

: missing retention periods and weaker sources in the filing cells

Before the filing-fee study went live, we checked every filing cell against the rule itself. Retention periods were missing for Kansas, Kentucky, Tennessee, Colorado, Louisiana, Mississippi and Connecticut, and we added them. Many filing cells that rested on a secondary source moved to the primary source, and the state pages and filing questions now follow the cells.

: ethics-opinion updates to the rules library

We applied a batch of ethics-opinion updates to the rules library. Every changed cell quotes the opinion it rests on. In several states a referral rule moved from a default or secondary source to a primary one, so the count of primary-source cells rose. The state pages carry a dated update note wherever a cell’s meaning changed.

The version of the dataset on Zenodo was released before these corrections, and the next version will carry them. The live library and the data page show the current cells.

What counts as a correction?

A correction is a change to a fact, a number, a date, a rule or a source after publication. Typos, new data and added examples are updates, and they show in the page’s “last reviewed” date. See the editorial policy and the editorial team for how we check our work.

Sources

  1. Rhode Island Rules of Professional Conduct, Rule 7.2(b)Accessed October 25, 2026
  2. Nevada Rules of Professional Conduct, Rules 7.2 and 7.2AAccessed October 25, 2026

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