A differential item functioning (DIF) analysis of the Communicative Participation Item Bank (CPIB): comparing individuals with Parkinson's disease from the United States and New Zealand.

TitleA differential item functioning (DIF) analysis of the Communicative Participation Item Bank (CPIB): comparing individuals with Parkinson's disease from the United States and New Zealand.
Publication TypeJournal Article
Year of Publication2014
AuthorsBaylor CR, McAuliffe MJ, Hughes LE, Yorkston K, Anderson T, Kim J, Amtmann D
JournalJ Speech Lang Hear Res
Volume57
Issue1
Pagination90-5
Date Published2014 Feb
ISSN1558-9102
KeywordsAdult, Aged, Aged, 80 and over, Communication Disorders, Cross-Cultural Comparison, Disability Evaluation, Dysarthria, Female, Humans, Linguistics, Male, Middle Aged, New Zealand, Parkinson Disease, Questionnaires, Speech Production Measurement, United States
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.

DOI10.1044/1092-4388(2013/12-0414)
Alternate JournalJ. Speech Lang. Hear. Res.
PubMed ID24687470