TY  - JOUR
A1  - Heffner, Christopher C.
A1  - Fuhrmeister, Pamela
A1  - Luthra, Sahil
A1  - Mechtenberg, Hannah
A1  - Saltzman, David
A1  - Myers, Emily B.
T1  - Reliability and validity for perceptual flexibility in speech
JF  - Brain and language : a journal of clinical, experimental and theoretical research
N2  - The study of perceptual flexibility in speech depends on a variety of tasks that feature a large degree of variability between participants. Of critical interest is whether measures are consistent within an individual or across stimulus contexts. This is particularly key for individual difference designs that are deployed to examine the neural basis or clinical consequences of perceptual flexibility. In the present set of experiments, we assess the split-half reliability and construct validity of five measures of perceptual flexibility: three of learning in a native language context (e.g., understanding someone with a foreign accent) and two of learning in a non-native context (e.g., learning to categorize non-native speech sounds). We find that most of these tasks show an appreciable level of split-half reliability, although construct validity was sometimes weak. This provides good evidence for reliability for these tasks, while highlighting possible upper limits on expected effect sizes involving each measure.
KW  - Reliability
KW  - Construct validity
KW  - Individual differences
KW  - Speech
KW  - perception
KW  - Phonetic identification
KW  - Phonetic learning
KW  - Phonetic
KW  - adaptation
Y1  - 2022
U6  - https://doi.org/10.1016/j.bandl.2021.105070
SN  - 0093-934X
SN  - 1090-2155
VL  - 226
PB  - Elsevier
CY  - Amsterdam [u.a.]
ER  -