Music-with-movement intervention supported by the stand-alone music-with-movement system.

The intervention group participants will receive 12 weekly music-with-movement interventions facilitated by trained staff in a community centre or a residential care home. The duration lasts 30 minutes to one hour. It can be carried out individually or with up to six persons in a group. The intervention will be supported by the standalone music-with-movement system.

Recruitment rate-defined as the proportion of eligible participants (following screening) who agreed to take part in the study (calculated as number of participants recruited (numerator)/number of eligible participants (denominator)).

Reference: Easpaig, B. N. G., Zhai, J., Gray, R., Brown, E., & Bressington, D. (2022). Recruitment, attrition and intervention completion in clinical trials of psychosocial interventions involving people with early and emerging psychosis: a systematic review protocol. BMJ open, 12(9), e060863.

Attrition rate -defined as the proportion of participants at defined study points who discontinued the intervention or were lost to follow-up (calculated as number of participants that withdraw (numerator)/number of participants randomised (denominator)).

Attrition rates will be calculated as three points: after randomisation, during the intervention and at final follow-up.

Reference:

Easpaig, B. N. G., Zhai, J., Gray, R., Brown, E., & Bressington, D. (2022). Recruitment, attrition and intervention completion in clinical trials of psychosocial interventions involving people with early and emerging psychosis: a systematic review protocol. BMJ open, 12(9), e060863.

Intervention completion rate - defined as the proportion of participants who completed the allocated intervention (for at least 70% attendance). Calculated as number of participants allocated to the intervention that completed the minimum attendance (numerator)/number of participants allocated to treatment (denominator).

The Multidimensional Scale of Perceived Social Support ("MSPSS") is a 12-item instrument designed to measure an individual's perception of support from 3 sources: family, friends and a significant other (4 items for each subscale) (Zimet et al., 1988), rated on a 7-point Likert scale ranging from "1" Very Strongly Disagree to "7" Very Strongly Agree.