WA Labor candidate's MBA claim questioned

WA Premier Mark McGowan has faced questions over Labor's Darling Range candidate Colleen Yates

WA Labor's Darling Range by-election candidate is being questioned about a qualification, less than a fortnight after her prospective predecessor quit in disgrace over lies about his background.

Hours after the party announced it had preselected Regional Development Australia chief executive Colleen Yates on Tuesday, reporters were scouring her LinkedIn profile.

It comes just 13 days after Labor MP-turned-independent Barry Urban resigned following a parliamentary committee recommendation to expel him because he had repeatedly lied about his work history and education.

Ms Yates' LinkedIn profile, which has since been taken down, had listed an MBA from the University of WA under her education with a date range of 2010-2010.

It's understood that's because she only started the qualification, which can be done in one year as a full-time "intensive" course, and has not yet completed it.

Opposition spokeswoman Liza Harvey said it was a "breathtaking" revelation.

"If I was in Darling Range, I'd be furious," Ms Harvey told reporters.

"Misrepresenting your academic qualifications is not acceptable.

"My daughter has a leaner's permit. She doesn't get about telling people she's got a driver's license."

Ms Yates' blog has also been deleted but Premier Mark McGowan said it was "standard" practice for candidates to remove social media postings ahead of elections.

However Ms Harvey said it was a "red flag" and "not a good look".

Mr McGowan insisted Ms Yates had been appropriately vetted for the role.

"She's a quality person who brings a range of skills to the party and the public," he said.

Ms Yates has been sought for comment.

Her preselection pits her against WA Liberal candidate Alyssa Hayden, an upper house MP during the Barnett government's eight-and-a-half-year reign.

It looks set to be a brutal by-election, Ms Harvey says.

"Both sides have something to prove," she said.

Ms Yates lived in the seat of Darling Range for seven years before relocating to Fremantle in 2015 to be closer to family.

Ms Hayden also doesn't live in the electorate, instead residing in Bayswater.

Darling Range was a safe Liberal seat for decades before Mr Urban won with a 5.8 per cent margin on the back of Labor's landslide victory in March last year.

The by-election will be held on June 23.