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J Deaf Stud Deaf Educ. 2016 Jan;21(1):64-9. doi: 10.1093/deafed/env051. Epub 2015 Nov 20.

American Sign Language Comprehension Test: A Tool for Sign Language Researchers.

Author information

1
National Technical Institute for the Deaf, Rochester Institute of Technology; NSF Science of Learning Center on Visual Language and Visual Learning; peter.hauser@rit.edu.
2
NSF Science of Learning Center on Visual Language and Visual Learning; Gallaudet University; and.
3
Gallaudet University; and.
4
National Technical Institute for the Deaf, Rochester Institute of Technology;
5
NSF Science of Learning Center on Visual Language and Visual Learning; San Diego State University.
6
National Technical Institute for the Deaf, Rochester Institute of Technology; NSF Science of Learning Center on Visual Language and Visual Learning;

Abstract

The American Sign Language Comprehension Test (ASL-CT) is a 30-item multiple-choice test that measures ASL receptive skills and is administered through a website. This article describes the development and psychometric properties of the test based on a sample of 80 college students including deaf native signers, hearing native signers, deaf non-native signers, and hearing ASL students. The results revealed that the ASL-CT has good internal reliability (α = 0.834). Discriminant validity was established by demonstrating that deaf native signers performed significantly better than deaf non-native signers and hearing native signers. Concurrent validity was established by demonstrating that test results positively correlated with another measure of ASL ability (r = .715) and that hearing ASL students' performance positively correlated with the level of ASL courses they were taking (r = .726). Researchers can use the ASL-CT to characterize an individual's ASL comprehension skills, to establish a minimal skill level as an inclusion criterion for a study, to group study participants by ASL skill (e.g., proficient vs. nonproficient), or to provide a measure of ASL skill as a dependent variable.

PMID:
26590608
DOI:
10.1093/deafed/env051
[Indexed for MEDLINE]

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