Gloria Tippett, the former College Park day-care provider accused of sexually molesting three girls and a boy in her care, was arrested by Prince George's County police Tuesday and charged with abusing another child.

Tippett, 46, whose day-care facility was shut by Maryland authorities in March, was arrested at her Laurel home shortly before 8:30 p.m. She was charged with child abuse for allegedly molesting a 4-year-old girl at various times from June 1988 until last January, police said.

As with the other children, the youngster in this case allegedly was molested at Tippett's day-care facility at 5111 Mineola Rd. Tippett was being held at the Prince George's Correctional Center yesterday in lieu of $50,000 bond, officials said. The charge of child abuse, a felony, is punishable by up to 15 years in prison.

In all, she now is charged with five counts of child abuse and four counts each of third-degree sex offense and assault. She pleaded not guilty to the earlier charges and is scheduled for trial Sept. 27.

Her lawyer, Sean Cleary, said yesterday that Tippett will plead not guilty to the new charge as well. "All I can tell you is that this is getting to be a little bit like a runaway train, and I hope we're going to be able to do something about it before it really hurts this innocent person," Cleary said.

Tippett's father, John Tippett, 69, also has been charged with one count each of child abuse, third-degree sex offense and assault, stemming from the alleged abuse of one of the youngsters, an 8-year-old boy.

In April, a month after state officials closed Gloria Tippett's day-care facility amid abuse allegations, a grand jury indicted her on three counts each of child abuse, third-degree sex offense and assault, stemming from the alleged abuse of a 4-year-old girl and two sisters, ages 4 and 10.

In August, a grand jury indicted her on one count each of child abuse, third-degree sex offense and assault, stemming from the alleged abuse of an 8-year-old boy. Tippett's father, also indicted in August, allegedly abused the boy while she restrained him.