Table 6.

The validation tasks, authors, and total number of studies targeting constructs classified as uncategorized.

VRa target construct and validation task				Validation		Authors		Studies, n (%)
Uncategorizedb									12 (63)
	Visual perception								1 (5)
		None specifically reported	N/Ac		Marín-Morales et al [70]d
	Verbal learning								2 (11)
		RAVLTe subtests: total, immediate recall, delayed recall, and recognition	Explicit		Miskowiak et al [63]
		International Shopping List Test (Cogstate)	Implicit		Porffy et al [65]
	Navigation								2 (11)
		None specifically reported	N/A		Porffy et al [65]
		None specifically reported	N/A		Robitaille et al [74]
	Associate learning								1 (5)
		Continuous Paired Associate Learning Test (Cogstate)	Implicit		Porffy et al [65]
	Pattern recognition								1 (5)
		Continuous Paired Associate Learning Test (Cogstate)	Implicit		Porffy et al [65]
	Perceptual motor								1 (5)
		None specifically reported	N/A		Tan et al [66]
	Social cognition								1 (5)
		None specifically reported	N/A		Tan et al [66]
	Learning and memory								1 (5)
		None specifically reported	N/A		Tan et al [66]
	Language								1 (5)
		None specifically reported	N/A		Tan et al [66]
	Calculation								1 (5)
		None specifically reported	N/A		Tsai et al [67]

^aVR: virtual reality.

^bWilliams et al [55] replicated the Wisconsin Card Sorting Test and multitasking task but did not explicitly state the cognitive constructs that the VR task was assessing. For this reason, the paper has not been assigned a target construct.

^cN/A: not applicable.

^dThe VR task involved 42 VR mini-games that assessed various cognitive constructs. In total, 4 mini-games and their target constructs were documented and included in this table; however, the comparative assessments were not provided, and an extensive list of all 42 mini-games was not provided.

^eRAVLT: Rey Auditory Verbal Learning Test.