Preisinger, Michael; (2003) An investigation into the relationship between performance on tests neuropsychological function and performance on three everyday problem-solving tasks. Doctoral thesis (Ph.D.), University College London (United Kingdom).

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Abstract

This study set out to examine the relationship between performance on neuropsychological tests and performance on everyday-problem solving tasks. Three everyday problem-solving tasks covering three domains of daily life were developed, and a battery of neuropsychological tests known to have an executive function component was selected. A within participants design was used and tasks and tests were administered to a group of thirty-two individuals (hospital inpatients and outpatients) with non-progressive brain- injuries. Correlations between individual tests and everyday problem-solving tasks were examined and three multiple regressions (one for each of the everyday problem-solving tasks) carried out. Comparison of performances on individual neuropsychological tests with those on the three everyday problem-solving tasks showed: (a) Performance on the Six Elements Test, an executive function test considered to have high ecological validity, correlated well with performance on the three problem- solving tasks, (b) The pattern of significant relationships between individual problem-solving tasks and individual neuropsychological tests suggested that there was a degree of specificity to each of the three everyday problem-solving tasks designed, (c) In some participants a dissociation between performance on everyday problem-solving tasks and on neuropsychological tests of executive function was observed. The multiple regression analyses, carried out to explore the explanatory value of performance on the battery of neuropsychological tests for performance on the everyday problem-solving tasks, showed that, depending on the task, between one quarter and one third of overall performance were explained by the group of neuropsychological tests administered. The study is best regarded as a pilot project on which to base further exploration of the association between performance on pure tests of neuropsychological functioning and performance on tasks of everyday problem-solving.

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