Research Article
Innovative Virtual Reality (VR) Application for Preventing of Falls among Chinese Older Adults: A Usability and Acceptance Exploratory Study
Table 4
Summary statistics and frequency distributions of variables in the VR usability questionnaire (HK-version).
| | Variable description | T1
(SD) | T2
(SD) | T3
(SD) |
| | Perceived usefulness (PU) | | | | | PU1 | 4.39 (0.615) | 4.61 (0.558) | 4.65 (0.486) | | PU2 | 4.23(0.669) | 4.35 (0.608) | 4.55 (0.624) | | PU3 | 4.35 (0.669) | 4.42 (0.564) | 4.58 (0.564) | | Perceived ease of use (PEOU) | | | | | PEOU1 | 3.65 (0.985) | 3.90 (0.539) | 3.87 (0.806) | | PEOU2 | 3.90 (0.870) | 3.87 (0.922) | 4.19 (0.792) | | PEOU3 | 3.97 (0.651) | 4.19 (0.654) | 4.26 (0.631) | | Perceived enjoyment (PU) | | | | | PE1 | 4.32 (0.702) | 4.48 (0.626) | 4.58 (0.620) | | PE2 | 4.35 (0.709) | 4.52 (0.508) | 4.65 (0.608) | | PE3 | 4.42 (0.564) | 4.68 (0.475) | 4.81 (0.402) | | Social norms (SNs) | | | | | SN1 | 3.77 (0.884) | 3.97 (0.706) | 4.13 (0.670) | | SN2 | 3.03 (1.329) | 3.48 (1.061) | 3.191 (1.078) | | SN3 | 4.10 (0.908) | 4.16 (0.735) | 4.29 (0.643) | | User experience (UE) | | | | | UE1 | 4.45 (0.568) | 4.61 (0.495) | 4.61 (0.558) | | UE2 | 4.13 (0.718) | 4.39 (0.558) | 4.32 (0.599) | | UE3 | 4.42 (0.502) | 4.61 (0.495) | 4.52 (0.570) | | Intention to use (IU) | | | | | IU1 | 3.90 (0.790) | 4.23 (0.617) | 4.52 (0.570) | | IU2 | 4.29 (0.588) | 4.48 (0.570) | 4.52 (0.626) |
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T1: before VR training; T2: after VR training; T2: post 3 months follow-up.
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