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Author ORCID Identifier

https://orcid.org/0009-0009-1619-3509

Date Available

10-24-2028

Year of Publication

2026

Document Type

Thesis

Degree Name

Master of Science (MS)

College

Arts and Sciences

Department/School/Program

Psychology

Faculty

Justin Karr

Jessica Burress

Abstract

The present study developed and validated a novel self-report measure of neurobehavioral dysregulation, a proposed transdiagnostic construct encompassing four symptom domains: impulsivity, affective lability, emotional dyscontrol, and explosivity. A total of 60 items (15 per domain) were created and reviewed by three neuropsychologists to establish expert validity. The resulting Neurobehavioral Dysregulation Scale (NDS) was administered electronically to 384 undergraduate students (Mage = 19.48, SD = 2.70; 85.2% female; 81.0% White) at a large public university in the southern United States. Confirmatory factor analysis supported the hypothesized four-factor structure (CFI = .920, TLI = .917, RMSEA = .029), and all subscales demonstrated strong internal consistency (α = .92–.96). Convergent validity was evidenced by a strong positive correlation with the Neuro-QoLTM Emotional and Behavioral Dyscontrol Short Form (r = .801, p < .001), and discriminant validity was supported by a moderate negative association with the Neuro-QoLTM Cognitive Function Short Form (r = −.506, p < .001), indicating distinction from subjective cognitive functioning. Overall, findings suggest that the NDS demonstrates strong psychometric properties and may serve as a reliable and valid tool for assessing neurobehavioral dysregulation, though further validation in clinical populations is warranted.

Digital Object Identifier (DOI)

https://doi.org/10.13023/etd.2026.457

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