This study evaluated score reliability of the Professional Quality of Life Scale (ProQoL) when contextualizing help to a relevant derivative. Terminology changes may extract different meaning resulting in measurement error. The researchers evaluated score reliability across three datasets among school-based professionals, teachers, and mental health professionals using Cronbach’s alpha, McDonald’s omega, inter-item correlations and visual analysis. Findings highlight use of one-word derivative changes to items may impact score reliability based on the professional activities represented.