Gerritsen, Jet (2022) Intraindividual Variability as a Measure of Neurological Integrity. Master thesis, Psychology.
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Abstract
The variability in response time a person shows within a certain task is called Intraindividual Variability (IIV). In neuropsychological research higher amounts of IIV has been shown to indicate cognitive decline and neurological disfunctions. Acquired brain injury such as stroke often result in cognitive decline. One of the tests frequently used in neuropsychological assessment post-stroke is the (digital) Trail Making Test (dTMT). The aim of this thesis is to investigate the influence of individual differences in age, months since the first stroke and level of education, of people with stroke on the IIV measured by means of dTMT. A group of 175 stroke survivors and 229 people without stroke participated in the present study. The outcome measures for IIV are the residualized Intraindividual Standard Deviation (rISD) and the Maximum Discrepancy score (MD). Results suggest that people with stroke can be distinguished from people without stroke based on higher amounts of IIV. Higher age of people that suffered stroke also predicted increased amounts of IIV. Months since the first stroke affected IIV measures from the TMT-A but not of TMT-B. Level of education did not affect IIV.
| Item Type: | Thesis (Master) |
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| Supervisor name: | Tol, S. |
| Degree programme: | Psychology |
| Differentiation route: | Clinical Neuropsychology (CN) [Master Psychology] |
| Date Deposited: | 07 Nov 2022 08:36 |
| Last Modified: | 07 Nov 2022 08:36 |
| URI: | http://gmwpublic.studenttheses.ub.rug.nl/id/eprint/1469 |
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