Boundary curves of individual items in the distribution of total depressive symptom scores approximate an exponential pattern in a general population

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Tomitaka, Shinichiro ; Kawasaki, Yohei ; Ide, Kazuki ; Akutagawa, Maiko ; Yamada, Hiroshi ; Furukawa, Toshiaki A. ; Ono, Yutaka (2016)
  • Publisher: PeerJ Inc.
  • Journal: PeerJ, volume 4 (issn: 2167-8359, eissn: 2167-8359)
  • Related identifiers: doi: 10.7717/peerj.2566, pmc: PMC5068372
  • Subject: Ordinal scale | CES-D | Medicine | Likert scale | Depressive symptoms | Logistic distribution | Level of measurement | Exponential distribution | R | Psychiatry and Psychology | Depression | Mathematical Biology | Latent trait | Boundary curve | Statistics

[Background]Previously, we proposed a model for ordinal scale scoring in which individual thresholds for each item constitute a distribution by each item. This lead us to hypothesize that the boundary curves of each depressive symptom score in the distribution of total ... View more
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