Figure 5From: Examining the impact of familiarity on faucet usability for older adults with dementia Average self-reported level of difficulty in response to the question “Do you think this faucet is easy or difficult to use?” Answers corresponded to a value on a four-point Likert scale where: 1 = very easy, 2 = easy, 3 = difficult, 4 = very difficult.Back to article page