Participants received the 8-hour dementia care education program consisting of four sequential modules: (1) advanced dementia care lectures and case discussions, (2) immersive virtual reality (VR) symptom experiences using HTC VIVE Flow headsets followed by reflective group discussions, (3) augmented reality (AR) interactive care skill training via mobile applications combined, and (4) sharing experiences of ethical and legal issues in dementia care.

Maintained routine education and completed parallel tests at T0, T1, and T2. The identical 8-hour program was provided to this group after T2 data collection ends.

an 8-hour digital learning dementia care education program

Measured using the Collaboration subscale of the Chinese Version of the Assessment of Interprofessional Team Collaboration Scale (AITCS-C), this subscale assessed the extent to which long-term care professionals perceived themselves as team members who listened to and valued all members' perspectives, actively contributed professional insights, and engaged in shared decision-making. It consisted of 8 items rated on a 5-point Likert scale (ranging from 1 = Never to 5 = Always), and the total subscale score ranged from 8 to 40, with higher scores indicating a higher perceived level of interprofessional collaboration within the care team. Subgroup interactions based on occupational categories (healthcare professionals vs. care assistants) were evaluated.

Measured using the Taiwan Shortened Version of the Dementia Knowledge Assessment Scale (DKAS-s), this scale evaluated long-term care professionals' knowledge level across four distinct dimensions: (1) causes and characteristics of dementia, (2) communication and engagement, (3) dementia care needs, and (4) risk assessment and health promotion. The scale consisted of 16 items utilizing a partial credit scoring method, where each correct answer yielded 1 point, and incorrect or "don't know" responses yielded 0 points. The total score ranged from 0 to 16, with higher total scores indicating a higher level of understanding and knowledge of dementia care, and subgroup interactions based on occupational categories (healthcare professionals vs. care assistants) were evaluated.

Measured using the Dementia Attitude Scale - Chinese Version (DAS-C), this scale evaluated long-term care personnel's attitudes toward individuals with dementia across two primary dimensions: (1) Social Comfort, which encompassed affective and behavioral components, and (2) Dementia Knowledge, which covered the cognitive component. The scale consisted of 17 items scored on a 5-point Likert scale (ranging from 1 = Strongly Disagree to 5 = Strongly Agree). The total score ranged from 17 to 85, with higher total scores indicating a more positive and favorable caregiving attitude toward people living with dementia. Subgroup interactions based on professional categories (healthcare professionals vs. care assistants) were evaluated.

Evaluated the subgroup interaction effect between occupational categories (healthcare professionals vs. care assistants) and time points within the intervention group using Generalized Estimating Equations (GEE). This analysis determined whether the treatment efficacy on interprofessional collaboration degrees (measured via the AITCS-C Collaboration subscale) differed significantly based on the participants' occupational categories.