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American Sign Language Prof...
Standards for High-Stakes Testing
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Defining Validity of an assessment:
Validity refers to the degree to which evidence and theory support the interpretations of test scores entailed by proposed uses of tests. (Standards, pg. 9)
Defining Reliability of an assessment:
Reliability refers to the consistency of measurements when the testing procedure is repeated on a population of individuals or groups. (Standards, pg. 25)
ASLPI is rater-based assessment. Therefore, the ASLPI interviewers must be skilled and strongly focused on the construct being measured throughout the interview process.
American Sign Language Proficiency Interview (ASLPI)