At just 13 years old, Nadia says she was forced by her family to have a 'virginity test'.

The woman at the centre of a 60 Minutes defamation case has broken down while describing how she was forced to take a virginity test at a Jordan hospital when she was just 13 years old.

Nadia Tabbaa testified that despite telling the doctor she had not been with a man, the test purported to find she was not a virgin, leading to her being beaten by her father and brother Omar.

When she asked her brother to repeat her denial to their father, she said he replied: “He believes you because if he didn’t you’d be dead”.

The 29-year-old was giving evidence on Wednesday for the Nine Network, which is being sued by her parents, Mouhammad Tabbaa and his former wife Pamela Tabbaa, over a 60 Minutes program.

In the interview, which aired in 2014, Ms Tabbaa said she was kidnapped at 13 while holidaying in Egypt, taken to live with her grandmother in Syria and forced to marry her older cousin before she managed to escape back to Sydney when she was 18.

During her evidence in the NSW Supreme Court, her father muttered loudly as Ms Tabbaa was giving details of the subjects she studied at a sharia school in Damascus.

"Hold your peace while the witness gives evidence," Justice Des Fagan responded, warning that if he couldn't contain himself he would be removed from the courtroom.

Ms Tabbaa said while living in Sydney from age eight to 13, her brother Omar regularly beat her with a belt, a kettle cord and thongs and was extremely abusive about the way she dressed.

He also abused her for going on sleepovers "in a house with strange men" and disapproved of her wearing swimming suits or leotards.

"Everything to him was sexualised," she said.

"Everything was very focused on chastity."

Ms Tabbaa said during her holiday in Egypt, she was told she would be taken to Jordan to see her father who had been living abroad and who she had not seen for a long time.

She was excited at seeing him because "as a little girl I did love my father".

But soon after her arrival, her father and Omar took her to a secluded paddock and interrogated her about her life in Australia, asking her about drugs, sleeping with men, running away from home and smoking.

They later told her "we have been planning this for months".

"They wanted me to be embarrassed as I had fallen for their trick," she said, adding she responded by saying she didn't care.

"My father spat on me," she said.

She had to live with her grandmother who "just hated me" and made her do all the household chores.

The grandmother regularly abused her saying: "You are lazy, you are spoiled, you are a donkey".

When an uncle dangled her over a balcony, her grandmother said: "He'll do it [drop her] and when they do the autopsy they will see you are not a virgin so he won't be arrested or go to jail".

The hearing is continuing.

If this article brings up any issues for you, please call 1800 RESPECT (1800 737 732) – the national sexual assault, domestic and family violence counselling service.