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Discrimination of the cognitive profiles of MCI and depression using the KBNA
Michelle C E Monette1, Larry Leach
1Department of Psychology, University of Windsor, Windsor.
Objective:
The current study sought to determine if the Kaplan-Baycrest Neurocognitive Assessment (KBNA) was capable of discriminating individuals with subjective memory complaints associated with depression from individuals with mild cognitive impairment (MCI).
Methods:
Scores on 12 subtests of the KBNA were compared for 27 participants with MCI and 28 participants being treated for depression using Bonferroni correct between-group comparisons for each subtest. KBNA subtest scores were corrected for age and education.
Results:
Significant between-group differences were obtained on six subtests with large effect sizes (Cohen's d) ranging from 1.19 - 1.58. The six subtests involved encoding and delayed episodic memory for verbal and visual information. Using logistic regression analysis, five subtests of the KBNA were able to correctly classify 96.4% of study participants.
Conclusion:
The results from this preliminary investigation indicate that the KBNA has the potential to serve as a brief and reliable assessment tool capable of distinguishing individuals with subjective memory complaints associated with depression from individuals with MCI in a clinical setting. Limitations of the current study and future research are discussed.
