[Psychometric property of an instrument 4: reliability and responsiveness]. / ì¸¡ì •ë„êµ¬ì˜ ì‹¬ë¦¬ê³„ëŸ‰ì  속성 4: ì‹ ë¢°ë„ì™€ 반응도.

For test-retest reliability, it is important to consider whether the attributes of the construct being measured is temporally stable or not. For responsiveness, it needs a longitudinal study design including a treatment/intervention known to induce a change on the construct to be measured.