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...
- What You Don't Know Can Hurt You: Missing Data and Partial Credit Model EstimatesSarah L Thomas
Sarah L Thomas, Department of Psychology, University of Virginia, 102 Gilmer Hall, P O Box 400400, Charlottesville, VA 22904, USA
J Appl Meas 17:14-34. 2016..In addition, standard errors of these estimates increased with the level of degradation. Thus, MCAR data does damage the quality and precision of PCM estimates. ..