Police said Schofield was travelling with her husband and three children who are aged 12 to 16.
Queensland Police Inspector Rob Graham made an official statement and confirmed the late mother’s death was intentional.
"This wasn't an accident," he revealed to reporters. "Let be open and honest about mental health."
"It's a tragic end to what should have been a lifetime holiday experience for a loving family."
"Her husband was standing right next to her when she went over."
Last week's reports suggested Schofield was swept overboard after a huge wave surfaced, however, police reveal this is not the case.
"The missing person did make intentional actions and deliberately propelled herself overboard the ship," Inspector Graham said.
Insp. Graham also let reporters know that the horrible incident was caught on security footage.
"What I saw was a couple of loving people on the top deck of a cruise ship," he adds.
"I saw them leaning on the rails and I saw the intentional actions of the missing person take two steps back and then propel herself over the railing.
"Her husband tried in vain to grab her when she went over...grabbing onto her legs...she was too far gone and subsequently, she fell.
"You’ve got three kids who are never going to see their mum again."
If you or someone you know is experiencing depression call Life Line on 13 11 14 or visit Beyond Blue.