Date of Award


Degree Type


Degree Name


Degree Program




Major Professor

Greve, Kevin

Second Advisor

Bianchini, Kevin

Third Advisor

Martel, Michelle


Attention impairment is one of the most common complaints following Traumatic Brain Injury (TBI). Multiple studies have shown that performance on neuropsychological tests of attention is affected by many factors, including injury severity and effort. The aim of this study was to determine the effect of injury severity on neuropsychological tests across different domains of attention while controlling for effort. The domains of focused attention, selective attention, divided attention, sustained attention, and working memory were assessed by performance on the Digit Span Forward subtest, the Stroop Color Word Test, the Trail Making Test, the Conners' Continuous Performance Test - II, and Digit Span Backwards subtest, respectively. Effort was determined according to performance on the Portland Digit Recognition Test and the Test of Memory Malingering. Effort was found to have a greater effect on test performance (.79) than injury severity (.47). Clinical implications of the findings are discussed.


The University of New Orleans and its agents retain the non-exclusive license to archive and make accessible this dissertation or thesis in whole or in part in all forms of media, now or hereafter known. The author retains all other ownership rights to the copyright of the thesis or dissertation.