Psychiatry Investig.  2021 May;18(5):373-384. 10.30773/pi.2020.0052.

Swedish Universities Scales of Personality: Relation to Other Personality Instruments

Affiliations
  • 1Human Brain Informatics (HUBIN), Centre for Psychiatric Research, Department of Clinical Neuroscience, Karolinska Institutet & Stockholm Health Care Services, Stockholm Region, Stockholm, Sweden
  • 2Division of Psychology, Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
  • 3NORMENT-TOP Study, Institute of Clinical Medicine, Psychiatry Section, University of Oslo, Oslo, Norway
  • 4Department of Psychiatric Research, Diakonhjemmet Hospital, Oslo, Norway

Abstract


Objective
To investigate associations between Swedish universities Scales of Personality (SSP) and scales of the following personality instruments: Structured Clinical Interview for DSM-III-R axis II screening questionnaire (SCID-II screen), revised NEO personality inventory (NEO-PI-R), revised Chapman scales (Chapman) and the psychotic traits questionnaire (STQ).
Methods
Healthy individuals (n=406) completed self-report personality questionnaires including SSP and at least one more personality inventory. Correlations were calculated between the 13 different SSP subscales as well as SSP’s three factors and factors and scales/subscales in SCID-II screen, NEO-PI-R, Chapman and STQ. The main factors of the various instruments were factor analysed. ICC were calculated.
Results
SSP Neuroticism factor correlated with SCID-II cluster C (r=0.71), NEO Neuroticism (r=0.80) and Chapman Social anhedonia (r=0.62). SSP Extraversion factor correlated with NEO Extraversion (r=0.63) and SSP Aggressiveness factor with NEO Agreeableness (r=-0.62). Strong correlations between SSP factors and scales and scales of the other instruments were sparse, although weaker correlations were common.
Conclusion
SSP is a useful investigation tool when measuring personality traits related to temperament-like features. SSP partly correlates well to especially three of the NEO-PI-R factors. The different personality inventories are not completely comparable to each other. Instead, they measure personality aspects in partly different ways.

Keyword

Swedish universities Scales of Personality, Personality traits, SCID-II screen, NEO-PI-R, Chapman
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