Evidence map›Paper›PMID 28403140›Full record

ArticlePloS one2017

A general approach for predicting the behavior of the Supreme Court of the United States.

Daniel Martin Katz, Michael J Bommarito, Josh Blackman

Abstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

26 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Behavioral Biases and Judicial Decision-Making in Brazil.Behavioral sciences (Basel, Switzerland) · 2024
    Article
  8. Discovering significant topics from legal decisions with selective inference.Philosophical transactions. Series A, Mathematical, physical, and engineering sciences · 2024
    Article
  9. Article
  10. Article
  11. Article
  12. Perceptions of Justice By Algorithms.Artificial intelligence and law · 2023
    Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Predicting Brazilian Court Decisions.PeerJ. Computer science · 2022
    Article
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Daniel Martin KatzIllinois Tech - Chicago-Kent College of Law, Chicago, IL, United States of America.ORCID http://orcid.org/0000-0003-2720-0339
Michael J BommaritoIllinois Tech - Chicago-Kent College of Law, Chicago, IL, United States of America.
Josh BlackmanSouth Texas College of Law Houston, Houston, TX, United States of America.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Building on developments in machine learning and prior work in the science of judicial prediction, we construct a model designed to predict the behavior of the Supreme Court of the United States in a generalized, out-of-sample context. To do so, we develop a time-evolving random forest classifier that leverages unique feature engineering to predict more than 240,000 justice votes and 28,000 cases outcomes over nearly two centuries (1816-2015). Using only data available prior to decision, our model outperforms null (baseline) models at both the justice and case level under both parametric and non-parametric tests. Over nearly two centuries, we achieve 70.2% accuracy at the case outcome level and 71.9% at the justice vote level. More recently, over the past century, we outperform an in-sample optimized null model by nearly 5%. Our performance is consistent with, and improves on the general level of prediction demonstrated by prior work; however, our model is distinctive because it can be applied out-of-sample to the entire past and future of the Court, not a single term. Our results represent an important advance for the science of quantitative legal prediction and portend a range of other potential applications.

Indexed as

ForecastingSupreme Court DecisionsHumansMachine LearningSocial JusticeUnited States

Identifiers

PMID28403140
PMCPMC5389610

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.