What materials are necessary for the BD assessment?

The correct choice indicates that the assessment of Block Design (BD) on the WISC-V requires a specific set of materials to ensure it is conducted accurately and consistently. These materials include a manual, which provides the necessary instructions for administering the test and interpreting results. The record form is essential for capturing the responses of the child being assessed.

Blocks are a crucial component of this particular subtest, as they are used for the design tasks that the child must complete. The stopwatch is necessary to measure the time it takes for the child to complete the block design tasks, which adds a time-based element to the assessment, contributing to the evaluation of the child's visual-spatial and organizational skills. Lastly, stimulus book 1 contains the specific patterns or designs that the child is required to replicate with the blocks.

This comprehensive set of materials ensures that the BD assessment is conducted following the standardized procedures, which is fundamental for obtaining reliable and valid test scores.