Monica K Erbacher
Affiliation: University of Virginia
- Measuring positive and negative affect in older adults over 56 days: comparing trait level scoring methods using the partial credit modelMonica K Erbacher
University of Virginia, P O Box 400400, Charlottesville, VA 22904, USA
J Appl Meas 13:146-64. 2012..Results indicated problems with NA items, including poor category utilization, gaps in the item distribution, and a lack of easy-to-endorse items. PA items had much more desirable psychometric qualities...