Nielsen Audio will reissue their monthly ratings from October 2017 to March 2018 for the Los Angeles market after a review found four homes did not meet its compliance and data integrity standards.
Those four homes were removed from today’s release of the April 2018 monthly so that release will remain as is. The March numbers will be reissued on Tuesday, May 22 with each monthly following once per week until October and November 2017 are reissued on the week of June 25.
This is the second time Nielsen has had to remove households from the Los Angeles market measurements after an isolated personnel issue caused several households to be improperly brought online” between January and July 2016 led to the removal of 55 panelists across 35 households to be removed from the August 2016 ratings.