Workplace use of psychological measures requires evidence of linguistic suitability and score consistency. This study aimed to translate and culturally adapt the 42-item Depression, Anxiety, and Stress Scale (DASS-42) and the initially 21-item Subjective Cognitive Decline Questionnaire (SCD-Q) for Indonesian Millennial and Generation Z employees, and to conduct a preliminary examination of item discrimination and internal consistency. Adaptation followed six stages: forward translation, synthesis, back-translation, expert review, pretesting, and final consideration of the adapted items. The purposively recruited sample comprised 100 employees. Corrected item–total correlations were 0.685–0.879 for DASS-42 Stress, 0.701–0.898 for Depression, 0.591–0.842 for Anxiety, and 0.401–0.770 for retained SCD-Q items. Cronbach’s alpha coefficients were 0.957, 0.961, 0.935, and 0.926, respectively. One SCD-Q item was excluded after a corrected item–total correlation of 0.118, leaving 20 retained items. The results provide preliminary evidence of item discrimination and internal consistency in this sample. Factorial, convergent, and discriminant validity were not examined, and further validation in larger, more diverse workplace samples is required.
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