Online diagnostic tests and traditional assessments can both help identify learning gaps, but their usefulness depends on what they measure and how the results are interpreted.

Online diagnostic tests allow students to answer questions digitally. Depending on the resource, they may provide immediate feedback or help students review particular topics. Their value depends on the quality of the questions and the explanations provided.

Traditional assessments, including written tests and classroom tasks, can show how students approach questions in a familiar learning environment. Teachers may also use written responses and observed work to understand a student's reasoning.

Neither approach automatically identifies every learning difficulty.

A student might answer a multiple-choice question incorrectly because they misunderstood the concept, misread the question or made a calculation error. Additional evidence may be needed to understand the reason.

Parents should compare assessment methods based on their child's learning needs.

Consider whether the questions reflect relevant school concepts, whether students can explain their reasoning and whether the results help identify topics requiring further attention.

Online assessments may suit students who want convenient practice and review. Traditional assessments can provide useful context through written work and classroom feedback.

Combining different sources of information can offer a clearer picture of student understanding.

The best assessment approach is one that supports meaningful feedback, targeted practice and appropriate next steps.