The VSI is composed of which two components?

The Visual Spatial Index (VSI) on the WISC-V is indeed composed of two components: Block Design (BD) and Visual Puzzles (VP).

Block Design assesses a child's ability to analyze and synthesize abstract visual stimuli by having them reproduce designs using blocks. This task evaluates spatial visualization ability and analysis of visual patterns, which is critical in measuring a child’s visual-spatial processing skills.

Visual Puzzles measures a child’s ability to evaluate and analyze visual information to determine how pieces fit together to form a complete picture. This task further examines the child’s visual-spatial reasoning skills.

Together, these components provide a comprehensive view of a child's ability to understand and manipulate visual information, which is crucial for tasks requiring spatial awareness, such as geometry and certain aspects of engineering and design in educational settings.