Table 3.

Summary of Measures

Dependent Variables	Measure/Indicator	Data	Schedule
Wayfinding performance	Virtual Senior Living data	Latency: time to complete route Number of errors Length of path	Day 2, 3
Wayfinding Strategies	Wayfinding strategy scale	Score	Day 1 and 3*
Independent Variables
Presence of early stage AD	HCP report, Clinical Dementia Rating Scale	Presence or absence of early stage AD/MCI versus normal controls	Day 1
Cue Condition	VSL	Standard (few cues) Salient – bright, colorful, familiar cues	Day 2, 3
Visual Attention to cues	Eye Tracker Data/Fixations	Number of fixations on cues and other areas Time spent (fixation time) looking at each cue	Day 2, 3
Influencing Variables
Demographics	Demographic survey	Age – in years Race – categorical Gender – categorical Education – in years Marital Status – categorical Living Status – categorical Socio-economic status – categorical Mobility aids used -categorical	Day 1
Working memory	Digit Span Test	Score of Digit Span Forwards and Backwards	Day 1
Computer Experience	Computer Use Survey	Score	Day 1
Wayfinding Anxiety	Lawton’s Spatial Anxiety Scale	Score	Day 1*
Cognition	Montreal Cognitive Assessment	Score	Day 2

^*Note: Since the Wayfinding Strategies Scale and The Spatial Anxiety Scale have not been tested in persons with dementia, we will test participants on day 1 and 3 to determine test – retest reliability.