Table 1.

Score for reliability test.

Instrument	Reliability test α
Relief worker burnout questionnaire	0.931
PTSD checklist – specific version (PCL-S)	0.931
Brief COPE scale	0.930
WHOQOL-BREF	0.909
Domain 1 Physical health	0.610
Domain 2 Psychological well-being	0.663
Domain 3 Social Relationship	0.810
Domain 4 Environmental support	0.857

PTSD: post-traumatic stress disorder, WHOQOL: world health organization QOL.