Updating PAJID Scores for State Supreme Court Justices (1970–2019)

Abstract

Abstract We build upon Brace, Langer, and Hall’s (2000, The Journal of Politics 62: 387–413) original measure of American state supreme court justice ideology – the PAJID scores. To do so, we gather new data on 1,666 state supreme court justices who served between 1970 and 2019 and update the PAJID scores throughout this period. Testing indicates that PAJID scores are a valid measure of state supreme court justices’ policy preferences and compare favorably, though less efficiently, to others such as Bonica and Woodruff (2015, The Journal of Law, Economics, and Organization 31: 472–98) and Windett, Harden, and Hall (2015, Political Analysis 23: 461–9). Given limited data availability for other ideological measures pre-1990 and post-2010, we conclude that these updated PAJID scores should prove attractive to scholars studying state courts during these periods and among those who desire additional state supreme court ideological data for robustness checks.

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