Related Experiment Video
Updated: Apr 3, 2026

Setup and Execution of the Rapid Cycle Deliberate Practice Death Notification Curriculum
Published on: August 5, 2020
Messing Up Texas?: A Re-Analysis of the Effects of Executions on Homicides
Patrick T Brandt1, Tomislav V Kovandzic2
1Political Science, Economic, Political and Policy Sciences, University of Texas, Dallas, Richardson, Texas, United States of America.
Abstract:
Executions in Texas from 1994-2005 do not deter homicides, contrary to the results of Land et al. (2009). We find that using different models--based on pre-tests for unit roots that correct for earlier model misspecifications--one cannot reject the null hypothesis that executions do not lead to a change in homicides in Texas over this period. Using additional control variables, we show that variables such as the number of prisoners in Texas may drive the main drop in homicides over this period. Such conclusions however are highly sensitive to model specification decisions, calling into question the assumptions about fixed parameters and constant structural relationships. This means that using dynamic regressions to account for policy changes that may affect homicides need to be done with significant care and attention.
More Related Videos
08:05A Procedure to Study Stress-Induced Relapse of Heroin Seeking after Punishment-Imposed Abstinence
Published on: March 23, 2022
06:55Inverse Probability of Treatment Weighting Propensity Score using the Military Health System Data Repository and National Death Index
Published on: January 8, 2020
Related Concept Videos
The Stanford Prison Experiment
Milgram's Obedience to Authority
Overview of Cell Death
Cell death was observed in the early 19th century, but there was no experimental evidence to prove it. In 1842, Carl Vogt first discovered cell death in a metamorphic toad; however, it was not termed ‘cell death.’ Scientists discovered different cell death pathways only in the...
Bystander Effect
Lethal Alleles
Lucien Cuénot discovered lethal alleles in 1905 while studying the inheritance of coat color in mice. The agouti gene is responsible for the color of the coat in mice. This gene codes for an agouti-signaling protein, which is responsible for melanin distribution in mammals. The wild-type allele gives rise to gray-brown coat color in mice, while the mutant allele gives rise to yellow coat color. In addition to coat color, the agouti gene is associated with the yellow...
Bonanno's Theory of Grieving
Resilience