RCT sample size for VR-based stress recovery study
Exact: 100 participants
Study enrolled 100 participants in a 2×2 VR experiment on traffic noise and stress recovery
Following an acute stressor, 100 participants were randomly assigned to a 2×2 between-subjects experiment with 25 per group, manipulating Green View Index (high vs. low) and soundscape composition (traffic noise vs. traffic noise plus birdsong). This design allowed isolation of visual and auditory effects on restoration.
100 participants were randomly assigned to a 2 × 2 between-subjects experiment manipulating Green View Index (high vs. low) and soundscape composition (traffic noise vs. traffic noise plus birdsong), with 25 participants in each group.
Related findings
>40%
majority of park users visit multiple times per week
Over 40% of urban park users in Delhi visit three or more times per week
Priyanka Jha et al., 2026, Land
50 of 2,816
very few published papers directly examine interior office space and employee health
Only 50 out of 2,816 papers examined the link between interior office space and employee health
Susanne Colenberg et al., 2020, Building Research & Information
+20%
sense of restorativeness increased after digital forest bathing
Sense of restorativeness significantly increased after digital forest bathing
Norimasa Takayama et al., 2022, International Journal of Environmental Research and Public Health
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