When a participant starts to answer before finishing saying the numbers, what is the best response?

The best response in this scenario is to encourage the participant to wait until you have completed the instructions before they begin to answer. This approach helps to ensure that they fully understand the task and have all relevant information before responding. It promotes clarity and allows you to gauge their understanding of the task requirements.

By asking them to wait until you stop before they start, you minimize the potential for confusion and misunderstandings that could affect the quality of their response. This approach reinforces the structure of the testing environment, which is crucial in standardized testing like the WISC-V, where consistency and clarity are vital for accurate assessment.

While other options might seem supportive or encourage participation, they could lead to incomplete or rushed answers, which would not accurately reflect the participant's abilities or understanding of the task at hand.