Examining Subcomponent Processes of Executive Functioning in Older Adults
University of Kansas
Copyright held by the author.
MetadataShow full item record
Executive Function (EF) is a broad construct used to describe higher-order cognitive abilities used to achieve a goal. Standardized measurements used to evaluate EF abilities in older adults are designed to assess for EF as a unitary complex construct, but may be insufficient in capturing the subcomponent cognitive processes that make up the complex nature of EF. The Unity/Diversity framework is a theoretically derived model of executive function that helps to parse out complex executive function derivatives into specific indices of ability with the use of latent construct analyses (Baddeley & Logie, 1999; Miyake et al., 2000). To date, one study has been published on the use of the unity/diversity framework to examine subcomponent processes of EF in older adults (Vaughan & Giovanello, 2010). In the current study, we aim to use a similar methodological approach as Vaughan and Giovanello (2010) to investigate subcomponent processes of EF in a sample of healthy older adults. Participants included 91 older adults who ranged between the ages of 66 and 90 (mean age= 73.3, SD = 6.34). Participants were excluded if they reported a history of neurological disorders, any current major medical conditions, and any psychiatric conditions or use of medications for psychiatric conditions. Findings suggest that the three-factor hypothesized model did not fit the covariance data of our sample as demonstrated by with significant chi-square results, X² (17, N=91) = 36.49, p = .004. Findings in our studies were not consistent with those of other studies and some limitations of the current study, which may have influenced the findings, are considered.
- Psychology Dissertations and Theses 
- Theses 
Items in KU ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
We want to hear from you! Please share your stories about how Open Access to this item benefits YOU.