The Adult Career Concerns Inventory (ACCI) uses an attitudinal item-re
sponse scale to measure the planning attitudes dimension of career ada
ptability. This study examined the psychometric properties of the ACCI
when used with a behavioral item-response scale. Results supported th
e hypothesized unidimensionality of the ACCI-B Exploration subscales,
which related as expected to vocational identity, need for occupationa
l information, career choice certainty, and career indecision. Using a
behavioral ACCI item-response scale, in addition to an attitudinal on
e, may provide counselors with important information when working with
client's making an initial career choice.