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Food Access in New York City During the COVID-19 Pandemic: Social Media Monitoring Study
Contractions (such as I’m, it’s, and we’re) were expanded (such as I am, it is, and we are). Punctuation and “stop words”—very common words in a particular language with little semantic value, such as a, of, and to [32]—were removed. The full list of stop words removed came from Natural Language Toolkit, the leading open-source natural language processing platform [33]. Emojis, hashtags, and tagged usernames (preceded by the @ symbol) were not removed.
JMIR Form Res 2025;9:e49520
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Answer choices included: 0 (“I do not think of suicide or death”), 1 (“I feel that life is empty or wonder if it’s worth living”), 2 (“I think of suicide or death several times a week for several minutes”), and 3 (“I think of suicide or death several times a day in some detail, or I have made specific plans for suicide or have actually tried to take my life”).
An item from the CGI-BDD was used to determine whether participants perceived their past-week BDD symptoms improving or worsening.
JMIR Ment Health 2025;12:e63605
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For usability testing, participants completed the 30-item USE questionnaire [65] which contains 4 subscales assessing usefulness (eg, “It helps me be more effective”), ease of use (eg, “It is easy to use”), ease of learning (eg, “I learned to use it quickly”), and satisfaction (eg, “I am satisfied with it”) on an 8-point Likert scale (1=strongly disagree to 8=strongly agree).
JMIR Form Res 2025;9:e65188
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Sample items include “I think that I would like to use bhoos frequently” and “I thought bhoos was easy to use.” Responses to each item range from 1 (strongly disagree) to 5 (strongly agree). Possible scores on the SUS range from 0 to 100, with a higher score indicating higher overall usability of a system or program. The SUS has been used in roughly 3500 surveys within 273 studies evaluating a range of systems, interfaces, and programs [37]. Internal consistency of the SUS was good (α=0.84).
JMIR Hum Factors 2025;12:e69873
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