Table 4.

The validation tasks, authors, and total number of studies targeting planning.

VRa target construct and validation task		Validation	Authors	Studies, n (%)
Planning					5 (26)
	TOL-DXb	Implicit	Chicchi Giglioli et al [69]
	TOLc	Explicit	Chicchi Giglioli et al [68]
	None specifically reported	N/Ad	Davison et al [62]e
	The Key Search task from BADSf [78]	Explicit	Kourtesis et al [76]
	None specifically reported	N/A	Kourtesis and MacPherson [75]

^aVR: virtual reality.

^bTOL-DX: Tower of London–Drexel test.

^cTOL: Tower of London test.

^dN/A: not applicable.

^eThe VR task was used to assess executive function. The comparative assessments that validated this assessment were detailed under “executive function” broadly as the paper did not specify which components of the VR task the comparative tasks aimed to validate.

^fBADS: Behavioral Assessment of the Dysexecutive Syndrome.