In the Original Investigation titled “Measuring Disturbance of the Endocannabinoid System in Psychosis: A Systematic Review and Meta-analysis,”1 published online June 5, 2019, and in September 2019 print, there was a spelling error in the byline. The author listed as “Beata R. Godwlewska, PhD,” should have been listed as “Beata R. Godlewska, PhD.” This article has been corrected online.