What materials are utilized for items 4-13 in BD?

The correct response indicates that only the picture in the stimulus book is used for items 4-13 in the Block Design (BD) subtest of the WISC-V. This is an important aspect of the test design, as it allows the child to replicate a two-dimensional image seen in the stimulus book using the blocks provided. The focus is on the child's ability to analyze the visual information presented and to construct the designated block pattern.

Using just the picture ensures that the test assesses visual-spatial skills and immediate visual processing without the complicating factor of a three-dimensional model for reference. The process encourages children to demonstrate creativity and spatial reasoning through their likely successful completion of the task with what they see in the stimulus book.