Dashboards & Visualizations

Mysterious data spike

mhtedford
Communicator

I have a plethora of survey data from several thousand video conference calls.

After each call, users are asked to fill out a survey.

I have found a mysterious spike in a number of survey results during the month of April that is skewing my visualizations.

The spike can be seen here:

alt text

Here is a sample of the event data:
alt text

This makes no sense, as there was no surge in number of calls during this time. My data is corrupt, but I'm not sure how/why.

Please advise.

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