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Self-Report Tests of Personality01:22

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Self-report inventories are objective personality assessments that use multiple-choice items or numbered scales, typically ranging from 1 (strongly disagree) to 5 (strongly agree). They are often called Likert scales after Rensis Likert. These inventories are widely used due to their ease of administration and cost-effectiveness. One of the most prominent examples is the Minnesota Multiphasic Personality Inventory (MMPI), initially developed in the 1940s to assess abnormal personality traits.
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The Cambridge Behavioural Inventory revised.

Helen J Wear1, Catherine J Wedderburn1, Eneida Mioshi2

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Dementia & Neuropsychologia
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PubMed
Summary

A shorter, 45-item Cambridge Behavioural Inventory (CBI) effectively distinguishes neurodegenerative disorders like frontotemporal dementia (FTD) and Alzheimer's disease (AD) from Parkinson's disease (PD) and Huntington's disease (HD). This tool aids diagnosis and monitoring.

Keywords:
Alzheimer’s diseaseCambridge Behavioural InventoryHuntington’s diseaseParkinson’s diseasedifferential diagnosis of dementiafrontotemporal dementianeuropsychiatric symptoms

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Gerontology

Background:

  • Neurobehavioural and psychiatric symptoms are key indicators in neurodegenerative disorders.
  • The original 81-item Cambridge Behavioural Inventory (CBI) differentiates frontotemporal dementia (FTD), Alzheimer's disease (AD), Huntington's disease (HD), and Parkinson's disease (PD).
  • The lengthy nature of the original CBI limits its clinical utility.

Purpose of the Study:

  • To develop a concise, 45-item version of the CBI.
  • To maintain the diagnostic and monitoring capabilities of the original CBI in a shorter format.

Main Methods:

  • Principal Components Analysis was applied to CBI data from 450 participants across four neurodegenerative conditions: behavioural variant frontotemporal dementia (bv-FTD), AD, PD, and HD.
  • Internal consistency was assessed using Cronbach's alpha.

Main Results:

  • A 45-item questionnaire was successfully developed.
  • The reduced CBI demonstrated comparable performance to the original 81-item version.
  • Distinct behavioural profiles were identified, differentiating between specific neurodegenerative conditions.

Conclusions:

  • The 45-item CBI effectively differentiates behavioural variant frontotemporal dementia (bv-FTD) and Alzheimer's disease (AD) from Parkinson's disease (PD) and Huntington's disease (HD).
  • This shorter instrument is valuable for delineating symptom types and severity in these disorders.
  • The revised CBI can aid in monitoring therapeutic interventions for neurodegenerative conditions.