VANCOUVER, Wash. (AP) — A 32-year-old woman was convicted of felony theft and perjury for posing as a high school student and obtaining foster care and a college tuition waiver.

A jury found Treva Throneberry guilty Monday after a five-day trial in which she represented herself. She faces up to four years in prison when she is sentenced next week.

As Brianna Stewart, Throneberry earned a 2.83 grade-point average at Evergreen High School, brought down somewhat by a D in drama. She graduated in June 2000.

The state spent about $11,500 on her education and $3,620.27 for her foster care. She received a $1,050 tuition waiver to attend Clark College before she was arrested in March.

Prosecutors said Throneberry had passed herself off as a teenager in other states, including Pennsylvania, Texas and Oregon.