The Effect of Alternative Scoring Procedures on the Measurement Properties of a Self-Administered Depression Scale: An IRT Investigation on the CES-D Scale

Noboru Iwata, Akizumi Tsutsumi, Takafumi Wakita, Ryuichi Kumagai, Hiroyuki Noguchi, Naotaka Watanabe

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

To investigate the effect of response alternatives/scoring procedures on the measurement properties of the Center for Epidemiologic Studies Depression Scale (CES-D) which has the four response alternatives, a polytomous item response theory (IRT) model was applied to the responses of 2,061 workers and university students (1,640 males, 421 females). Test information functions derived from the polytomous IRT analyses on the CES-D data with various scoring procedures indicated that: (1) the CES-D with its standard (0-1-2-3) scoring procedure should be useful for screening to detect subjects with "at high-risk" of depression if the θ point showing the highest information corresponds to the cut-off point, because of its extremely higher information; (2) the CES-D with the 0-1-1-2 scoring procedure could cover wider range of depressive severity, suggesting that this scoring procedure might be useful in cases where more exhaustive discrimination in symptomatology is of interest; and (3) the revised version of CES-D with replacing original positive items into negatively revised items outperformed the original version. These findings have never been demonstrated by the classical test theory analyses, and thus the utility of this kind of psychometric testing should be warranted to further investigation for the standard measures of psychological assessment.

Original languageEnglish
Pages (from-to)55-62
Number of pages8
JournalEuropean Journal of Psychological Assessment
Volume35
Issue number1
DOIs
Publication statusPublished - 2019 Jan 1

Keywords

  • Center for Epidemiologic Studies Depression Scale
  • Japanese
  • item response theory
  • measurement accuracy
  • rating scale

ASJC Scopus subject areas

  • Applied Psychology

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