Today, we’re reviewing the contents of our database, which includes every case decided by the Illinois Supreme Court since January 17, 1990.  For every case, we’ve captured the following data points:

Official Reporter Citation

  1. E. Reporter Citation

Docket Number

Case Name

Petitioner

Petitioner Governmental Entity (Y/N)

Respondent Governmental Entity (Y/N)

Source of Appellate Jurisdiction

Originating

Last time, we began our analysis by addressing the competing theories of judicial behavior.  Formalism, the oldest theory, teaches that judicial decision making can be explained and predicted based upon the facts, the applicable law and precedent and judicial deliberations – and nothing more.  But if formalism explains all of judicial decision making, then many

Our latest repost:

We begin our analysis by addressing the foundation of the entire body of data analytic scholarship on appellate judging: competing theories of judicial decision making.

The oldest theory by far is generally known in the literature as “formalism.”  This is the theory we all learned in law school, according to which every

Our short series of contextual reposts continues:

Although the state Supreme Courts have not attracted anything near the level of study from academics engaged in empirical legal studies that the U.S. Supreme Courts and Federal Circuits have a number of different researchers have attempted to compare how influential the various state courts are for the

I’m always surprised when I encounter litigators who dismiss litigation analytics as a passing fad.  In fact, as shown in the reprint post below, it’s a century-long academic enterprise which has produced many hundreds of studies conclusively proving through tens of thousands of pages of analysis the value of data analytics in better understanding how

The Illinois Supreme Court Review recently marked its sixth anniversary.  In April, the California Supreme Court Review turns five.

So I thought it was time for a first: cross-posted reprints from the earliest days of the blogs.  My early attempts to provide context for the work and to answer the question I often heard in

Yesterday, we reviewed the data on Justice Neville’s question patterns since joining the Court in civil cases.  Today, we’re looking at the criminal side.

Justice Neville has not been a particularly active questioner thus far in criminal cases.  He more heavily questions the eventual loser when he’s in the majority of criminal cases, although the

This week we’re concluding our trip through the Justice-by-Justice oral argument analytics data to determine whether it’s possible to predict when a particular Justice is dissenting (although Justice Michael Burke replaced Justice Thomas earlier this year, there is too little data so far to reach any conclusions about his arguments).  Today and tomorrow, we’re looking

This time, we’re reviewing the data for Justice Theis’ question patterns in criminal cases.

When Justice Theis agrees with the majority in an affirmance, she follows the expected pattern, averaging 3.22 questions to appellants and only 1.38 to appellees.  However, she breaks from the pattern in reversals, more heavily questioning the winner – 3.02 to