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Predicting Story Goodness Performance From Cognitive Measures Following Traumatic Brain Injury

Lê, Karen and Coelho, Carl and Mozeiko, Jennifer and Krueger, Frank and Grafman, Jordan
Predicting Story Goodness Performance From Cognitive Measures Following Traumatic Brain Injury. American Journal of Speech-Language Pathology, 21(Suppl.), May, 2012, pages S115-S125.

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Purpose: This study examined the prediction of performance on measures of the Story Goodness Index (SGI; Lê, Coelho, Mozeiko, & Grafman, 2011) from executive function (EF) and memory measures following traumatic brain injury (TBI). It was hypothesized that EF and memory measures would significantly predict SGI outcomes.

Method: One hundred sixty-seven individuals with TBI participated in the study. Story retellings were analyzed using the SGI protocol. Three cognitive measures—Delis-Kaplan Executive Function System (D-KEFS; Delis, Kaplan, & Kramer, 2001) Sorting Test, Wechsler Memory Scale—Third Edition (WMS–III; Wechsler, 1997) Working Memory Primary Index (WMI), and WMS–III Immediate Memory Primary Index (IMI)—were entered into a multiple linear regression model for each discourse measure. Two sets of regression analyses were performed, the first with the Sorting Test as the first predictor and the second with it as the last.

Results: The first set of regression analyses identified the Sorting Test and IMI as the only significant predictors of performance on measures of the SGI. The second set identified all measures as significant predictors when evaluating each step of the regression function.

Conclusion: The cognitive variables predicted performance on the SGI measures, although there were differences in the amount of explained variance. The results (a) suggest that storytelling ability draws on a number of underlying skills and (b) underscore the importance of using discrete cognitive tasks rather than broad cognitive indices to investigate the cognitive substrates of discourse.

EPrint Type:Journal (Paginated)
Keywords:discourse analysis, cognition, brain injury, narratives, executive function
ID Code:2346
Conference:Clinical Aphasiology Conference: Clinical Aphasiology Conference (2011 : 41st : Fort Lauderdale, FL : May 31-June 4, 2011)
Publication:American Journal of Speech-Language Pathology
Alternative Locations:
DOI or Unique Handle:10.1044/1058-0360(2012/11-0114)
Additional Information:This article is based on a paper originally presented at the CAC2011 Conference. Permission to view the full-text articles is subject to the publisher’s access restrictions.

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