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Acceptance of a Virtual Reality Headset Designed for Fall Prevention in Older Adults: Questionnaire Study

Acceptance of a Virtual Reality Headset Designed for Fall Prevention in Older Adults: Questionnaire Study

Participants answered the 3 items (eg, “When I do physical activity, my goal is to avoid doing worse than I usually do”) on a Likert scale ranging from 1 (strongly disagree) to 5 (strongly agree).Internal consistency was good for each variable, with McDonald

Nicolas Mascret, Lisa Delbes, Amélie Voron, Jean-Jacques Temprado, Gilles Montagne

J Med Internet Res 2020;22(12):e20691

Psychometric Validation and Cultural Adaptation of the Simplified Chinese eHealth Literacy Scale: Cross-Sectional Study

Psychometric Validation and Cultural Adaptation of the Simplified Chinese eHealth Literacy Scale: Cross-Sectional Study

The internal consistency reliability was estimated using Cronbach alpha (α>.7, acceptable), McDonald omega (ω>0.7, acceptable), and split-half reliability (λ>0.7, acceptable).

Richard Huan Xu, Lingming Zhou, Sabrina Yujun Lu, Eliza Laiyi Wong, Jinghui Chang, Dong Wang

J Med Internet Res 2020;22(12):e18613

Measuring Alliance Toward Embodied Virtual Therapists in the Era of Automated Treatments With the Virtual Therapist Alliance Scale (VTAS): Development and Psychometric Evaluation

Measuring Alliance Toward Embodied Virtual Therapists in the Era of Automated Treatments With the Virtual Therapist Alliance Scale (VTAS): Development and Psychometric Evaluation

Cronbach alpha and McDonald omega were calculated as measures of internal consistency. Convergent validity was assessed by comparing the VTAS to presence and user-friendliness scores using Pearson correlations.

Alexander Miloff, Per Carlbring, William Hamilton, Gerhard Andersson, Lena Reuterskiöld, Philip Lindner

J Med Internet Res 2020;22(3):e16660

Toward a Taxonomy for Analyzing the Heart Rate as a Physiological Indicator of Posttraumatic Stress Disorder: Systematic Review and Development of a Framework

Toward a Taxonomy for Analyzing the Heart Rate as a Physiological Indicator of Posttraumatic Stress Disorder: Systematic Review and Development of a Framework

An exception is McDonald et al [11] who evaluated several machine learning algorithms—neural networks, decision trees, support vector machines, convolutional neural networks, and random forests—to predict the onset of PTSD symptoms in the veteran population

Mahnoosh Sadeghi, Farzan Sasangohar, Anthony D McDonald

JMIR Ment Health 2020;7(7):e16654

Reliability and Validity of Assessing User Satisfaction With Web-Based Health Interventions

Reliability and Validity of Assessing User Satisfaction With Web-Based Health Interventions

Essential tau equivalency is a necessary assumption for the use of the Cronbach alpha index; if the underlying model violates this assumption, Cronbach alpha will underestimate the reliability of the scale, and McDonald omega should be used instead as a more

Leif Boß, Dirk Lehr, Dorota Reis, Christiaan Vis, Heleen Riper, Matthias Berking, David Daniel Ebert

J Med Internet Res 2016;18(8):e234

Quality of Web-Based Educational Interventions for Clinicians on Human Papillomavirus Vaccine: Content and Usability Assessment

Quality of Web-Based Educational Interventions for Clinicians on Human Papillomavirus Vaccine: Content and Usability Assessment

or model was used to develop the intervention, the theory or model was recorded in the scoring metric.ProcedureOnce interrater reliability was established for the evaluation tool with all indicator scores above .80, 2 independent coders (Mr Bishop and Ms McDonald

Brittany L Rosen, James M Bishop, Skye L McDonald, Jessica A Kahn, Gary L Kreps

JMIR Cancer 2018;4(1):e3