This study assessed the claims of unidimensionality
for a measure of oral communication apprehension
(Personal Report of Communication Apprehension).
Eighteen independent samples, drawn from
Australian and United States sources were used;
and comparisons were made between the samples.
Although similarities were found among the data
sets with respect to internal consistency, frequency
distributions, and item-total correlations, the claim
of unidimensionality in the measure was rejected. It
was also found that there were no overall differences
between Australian and United States
samples, no sex differences, and no age differences.
Hansford, B. C & Hattie, J. A. (1982). Communication apprehension: An assessment of Australian and United States data. Applied Psychological Measurement, 6, 225-233. doi:10.1177/014662168200600209
Hansford, B. C.; Hattie, John.
Communication apprehension: An assessment of Australian and United States data.
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