Education Minister Yvette Berry says the ACT government will play an active role in a planned review of NAPLAN.
Victoria, NSW and Queensland are pressing ahead with a breakaway review of the national testing program, which could lead to a shakeup of the program.
The terms of reference for the review - led by emeritus professor Barry McGaw, professor Claire Wyatt-Smith and emeritus professor William Louden - were released on Wednesday.
NAPLAN has been criticised by some for its narrow scope and how the data is used to compare schools.
Ms Berry said the ACT would play an active part in the review.
She said she'd like to see NAPLAN change to provide a more comprehensive overview of a child's learning.
"NAPLAN itself is a very narrow focus on a couple of different indicators," Ms Berry said.
"While it does provide some assessment of a student at a point of time on those particular things, more comprehensive data across a whole child's learning from the start to the end of the year would be more beneficial to the student, for their parents and for the teachers as well.
"I would like to see NAPLAN as it currently is now change in the future to a more comprehensive formative assessment tool, less narrow that would provide much better information."