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Equivalent forms and split-half reliability of the NU-CHIPS administered in noise
The Journal of Speech and Hearing Disorders
|May 1, 1984
Summary
White noise negatively impacts the reliability of the Northwestern University-Children
Area of Science:
- Audiology
- Speech-Language Pathology
- Psychometrics
Background:
- The Northwestern University-Children's Perception of Speech Test (NU-CHIPS) is a tool for assessing speech perception in children.
- Understanding the impact of noise on test reliability is crucial for accurate audiological assessments.
Purpose of the Study:
- To investigate how white noise affects the reliability of the NU-CHIPS.
- To determine the influence of different signal-to-noise ratios (S/N) on test consistency.
Main Methods:
- 36 normally hearing 10-year-olds participated.
- Participants were randomly assigned to three groups, each tested at a different S/N ratio (-4, 0, +2).
- All four forms of the NU-CHIPS were administered to each participant.
Main Results:
- Reliability, including equivalent forms and internal consistency, was diminished in the presence of white noise.
- Pearson product-moment correlation coefficients indicated a decrease in reliability compared to quiet conditions.
Conclusions:
- White noise significantly reduces the reliability of the NU-CHIPS.
- Audiological testing with the NU-CHIPS in noisy environments may yield less dependable results.