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Title:

A differential item functioning (DIF) analysis of the Communicative Participation Item Bank (CPIB): Comparing individuals with Parkinsonís disease from the United States and New Zealand

Author(s):

Baylor C, McAuliffe MJ, Hughes L, Yorkston K, Anderson T, Kim J, Amtmann, D

Year:

2014

Publication Info:

Journal of Speech Language and Hearing Research, 57(1):90-95

Abstract:

PURPOSE: To examine the cross-cultural applicability of the Communicative Participation Item Bank (CPIB) through a comparison of respondents with Parkinson's disease (PD) from the United States and New Zealand.
METHOD: A total of 428 respondents-218 from the United States and 210 from New Zealand-completed the self-report CPIB and a series of demographic questions. Differential item functioning (DIF) analyses were conducted to examine whether response bias was present across the 2 groups.
RESULTS: No items were identified as having statistically significant DIF across the U.S. and N.Z. cohorts.
CONCLUSION: The current CPIB items and scoring parameters are also suitable for use with respondents from New Zealand.

Link to Article:

http://www.ncbi.nlm.nih.gov/pubmed/24687470

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