caa a22 4500 445343710 CHVBK 20180317142822.0 cr unu---uuuuu 170323e20110201xx s 000 0 eng 10.1007/s00406-010-0106-1 doi (NATIONALLICENCE)springer-10.1007/s00406-010-0106-1 Validity of the Definite and Semidefinite Questionnaire version of the Hamilton Depression Scale, the Hamilton Subscale and the Melancholia Scale. Part I [Elektronische Daten] [Jesper Bent-Hansen, Per Bech] Instruments for self-rating in depression are available, but their psychometric properties have not been fully explored; discrepancies with clinician ratings have been identified. This study was longitudinal with 85 patients fulfilling the DSM-III-R diagnosis of Seasonal Affective Disorder. Self-reporting versions (definitely and semidefinitely anchored) corresponding to the Hamilton Depression Scale (HAMD), the Hamilton Subscale (HAM6), and the Bech-Rafaelsen Melancholia Scale (MES) were compared to each other and the clinician-rated version. The unidimensional property of the sum score in each scale was tested by the item-response theory model ad modum Rasch. The scales were also tested for their sensitivity to discriminate between placebo and citalopram therapy. The sum scores and the sum score variances of the definite self-rating versions did not differ significantly from the sum scores of the corresponding observer scales at any of the five time points. The semidefinite scales significantly over-scored at all time points. The convergent validity between corresponding definite self-ratings and observer ratings was very high with correlations exceeding 0.90. Only item responses from the MES, the HAM6, and their corresponding definite versions of the self-rating questionnaires DMQ and DHAM6 were accepted by the Rasch analysis, and only these four valid scales discriminated significantly between the effect of citalopram and placebo treatment. Our results are limited to patients with moderate depression. Two new self-report scales with unparalleled construct validity, reliability, sensitivity, and convergent validity have been identified (DMQ and DHAM6). We have also identified a crucial importance of format for the means and variances of self-rating scales. These findings are of high practical and scientific value. Springer-Verlag, 2010 Analogous observer and self-reported rating scales nationallicence Definitely vs. Semidefinitely anchored self-rated items nationallicence IRT (Rasch) validation of self-reported scales nationallicence Variance of self-rated scales nationallicence Bent-Hansen Jesper Department of Psychiatric Research, Department of Psychiatry, Frederiksberg Hospital Department, 2000, Frederiksberg, Denmark aut Bech Per Psychiatric Research Unit, Frederiksborg General Hospital, 3400, Hillerød, Denmark aut European Archives of Psychiatry and Clinical Neuroscience Springer-Verlag 261/1(2011-02-01), 37-46 0940-1334 261:1<37 2011 261 406 https://doi.org/10.1007/s00406-010-0106-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00406-010-0106-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bent-Hansen Jesper Department of Psychiatric Research, Department of Psychiatry, Frederiksberg Hospital Department, 2000, Frederiksberg, Denmark aut NATIONALLICENCE 700 1- Bech Per Psychiatric Research Unit, Frederiksborg General Hospital, 3400, Hillerød, Denmark aut NATIONALLICENCE 773 0- European Archives of Psychiatry and Clinical Neuroscience Springer-Verlag 261/1(2011-02-01), 37-46 0940-1334 261:1<37 2011 261 406 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer