School district spokeswoman Sandy Catt said the booth was removed over the weekend from Mint Valley Elementary School.
She also told KLOG-AM the district has decided to use an independent company to investigate how the padded booth was being used, and that might take longer than the few weeks originally expected.
The school stopped used the booth last week after a photo posted on Facebook raised concerns it was being used as punishment. The school says most students used it voluntarily to control emotional behavior.
Catt said the school is working with parents of special education students on other control methods.
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