Article

Development of a unidimensional composite measure of neuropsychological functioning in older cardiac surgery patients with good measurement precision.

Institute for Aging Research, Hebrew SeniorLife, Boston, MA, USA.
Journal of Clinical and Experimental Neuropsychology (impact factor: 2.13). 05/2010; 32(10):1041-9. DOI:10.1080/13803391003662728 pp.1041-9
Source: PubMed

ABSTRACT The objective of this analysis was to develop a measure of neuropsychological performance for cardiac surgery and to assess its psychometric properties. Older patients (n = 210) underwent a neuropsychological battery using nine assessments. The number of factors was identified with variable reduction methods. Factor analysis methods based on item response theory were used to evaluate the measure. Modified parallel analysis supported a single factor, and the battery formed an internally consistent set (coefficient alpha = .82). The developed measure provided a reliable, continuous measure (reliability > .90) across a broad range of performance (-1.5 SDs to +1.0 SDs) with minimal ceiling and floor effects.

0 0
 · 
0 Bookmarks
 · 
45 Views
Data provided are for informational purposes only. Although carefully collected, accuracy cannot be guaranteed. The impact factor represents a rough estimation of the journal's impact factor and does not reflect the actual current impact factor. Publisher conditions are provided by RoMEO. Differing provisions from the publisher's actual policy or licence agreement may be applicable.

Keywords

broad range
 
cardiac surgery
 
continuous measure
 
developed measure
 
internally consistent
 
minimal ceiling
 
Modified parallel analysis
 
neuropsychological battery
 
single factor
 
variable reduction methods