BioPsychoSocial
Assessment Tools for the Elderly - Assessment Summary Sheet
Test: Neuropsychiatric Inventory (NPI)
Year: 1994
Domain: Psychological
Assessment Tool Category: Mental Health
Variations/Translations: Three modified versions of the
NPI have been developed: the NPI-NH (for nursing home setting),
the NPI-Q (self administered), and the CGA-NPI (self
administered).
Setting: Clinical
Method of Delivery: Assessment by clinician in a fully
structured interview.
Description: The NPI includes 10 behavioral domains with
7-8 sub-questions and measures severity (3-point scale) and
frequency (4-point scale). Categories include delusions,
hallucinations, dysphoria, anxiety, agitation/aggression,
euphoria, disinhibition, irritability, apathy, and aberrant motor
activity
Scoring/Interpretation: A gate questions is included for
each subsection. If this question is answered affirmative, the
interviewer then asks the 7 to 9 follow-up questions about the
presence or absence of specific symptoms within that domain. The
total subscale score is the mathematical product of the frequency
and severity. The total NPI score is the sum of the subscale
scores. Higher scores indicate more behavioural disturbance. A
global score can be generated by summing the total scores
(frequency multiplied by severity) of the individual subscales.
Time to Administer: 30 minutes
Availability: As appendix in many studies; online for a
fee
Software: N/A
Website: N/A
Quantitative/Qualitative: Quantitative
Validity (Quantitative): Concurrent validity was
determined by comparing the scores on the relevant subscales of
the NPI with the appropriate scales of 2 instruments, Behavioral
Pathology in Alzheimer's Disease (BEHAVE-AD) and the Hamilton
Depression Rating Scale (HDRS) (coefficients not reported). To
establish content validity a delphi panel was developed and asked
to rate the scale items. Inter-rater reliability was found to be
very high (correlation not reported). 45 patients with Alzheimer’s
disease were rated on the NPI and BEHAV-AD and its subscales as
the gold standard, the following correlations were found: total
BEHAV-AD with NPI total frequency score, 0.66; total BEHAV-AD
score with NPI severity, 0.71; and total BEHAV-AD score with NPI
frequency times severity, 0.62.
Reliability (Quantitative): Test-retest reliability was
found to be 0.79 for frequency (P = 0.0001) and 0.86 for
sensitivity (P = 0.0001). In a study of the internal consistency
of NPI, a Cronbach alpha of 0.88 was observed for the total NPI
score. For individual subscales, alpha ranged from 0.87 to 0.88.
References:
Cummings, J.L., Mega, M., Gray, K., Rosenberg-Thompson, S.,
Carusi, D.A., & Gornbein, J. (1994) The neuropsychiatric
inventory: Comprehensive assessment of psychopathology in
dementia. Neurology, 44, 2308-14.
Rush, J.A., First, M.B., & Blacker, D. (2008). Handbook of
psychiatric measures. Task Force for the American Psychiatric
Association (Second Edition) Washington, D.C.: American
Psychiatric Publications.
Comments: N/A
|