Development of a short form of the Singapore Caregiver Quality of Life Scale – Dementia: SCQOLS-D-15

Journal of Patient-Reported Outcomes

Table 5 Measurement properties of the 15-item short form of the Singapore Caregiver Quality of Life Scale – Dementia (SCQOLS-D-15) in the follow-up survey

Domain / Total score	SCQLS-D-15 items	r	Alpha
Physical Well-being	PW6 + PW8 + PW11	0.93	0.90
Mental Well-being	MW5 + MW8 + MW18	0.76	0.83
Experience & Meaning	EM5 + EM6 + EM7 + EM12	0.91	0.85
Impact on Daily Life	DL2 + DL4 + DL5	0.92	0.88
Financial Well-being	FW1 + FW3	0.97	0.91
Total score	15 items above	0.94	0.91

Abbreviation: r Pearson’s correlation coefficient of the short form domain / total score with the corresponding score in the long form