Connor Balthazor was in the middle of study hall when he was called into a meeting with his high school newspaper adviser.

A group of reporters and editors from the student newspaper, the Booster Redux at Pittsburg High School in southeastern Kansas, had gathered to talk about Amy Robertson, who was hired as the high schoolโ€™s head principal on March 6.

The student journalists had begun researching Robertson, and quickly found some discrepancies in her education credentials. For one, when they researched Corllins University, the private university where Robertson said she got her masterโ€™s and doctorate degrees years ago, the website didnโ€™t work. They found no evidence that it was an accredited university.

โ€œThere were some things that just didnโ€™t quite add up,โ€ Balthazor said.

The students began digging into a weekslong investigation that would result in an article published on Friday questioning the legitimacy of the principalโ€™s degrees and of her work as an education consultant.

On Tuesday night, Robertson resigned.

โ€œIn light of the issues that arose, Dr. Robertson felt it was in the best interest of the district to resign her position,โ€ Pittsburg Community Schools announced in a statement. The board has agreed to accept her resignation.โ€

The resignation thrust the student newspaper staff into local, state and national news, with professional journalists nationwide applauding the students for asking tough questions and prompting change in their administration.

โ€œEverybody kept telling them, โ€˜stop poking your nose where it doesnโ€™t belong,โ€™ newspaper adviser Emily Smith told The Post. But with the encouragement of the superintendent, the students persisted.

โ€œThey were at a loss that something that was so easy for them to see was waiting to be noticed by adults,โ€ Smith said.

In the Booster Redux article, a team of six students โ€” five juniors and one senior โ€” revealed that Corllins had been portrayed in a number of articles as a diploma mill, a place where people can buy a degree, diploma or certificates. Corllins is not accredited by the U.S. Department of Education, the students reported. The Better Business Bureauโ€™s website says Corllinsโ€™ physical address is unknown.

In an emergency faculty meeting on Tuesday, the superintendent said Robertson was unable to produce a transcript confirming her undergraduate degree from the University of Tulsa, Smith said.

Under Kansas law, high school journalists are protected from administrative censorship.