Final answer:
An important measure for FMS that features high inter-rater reliability is the use of standardized testing methods like the MMPI, which has proven test-retest reliability over time.
Step-by-step explanation:
An important measure for FMS (Functional Movement Screen) that shows high inter-rater reliability and can be an effective tool for screening is the use of standardized testing methods, such as the MMPI (Minnesota Multiphasic Personality Inventory).
Reliability scales test an instrument's consistency over time, and in the case of the MMPI, it has been shown to reliably predict changes in an individual's behavior, such as increased vulnerability to alcoholism, somatic symptoms, and anxiety among police officers over time. The demonstration of test-retest reliability, as well as the consistency of scores over four years, supports the use of such standardized measures in screening and assessment processes.