Abstract
This article reviews available assessment instruments for three of the feeding and eating disorder diagnostic categories: avoidant restrictive food intake disorder (ARFID), pica, and rumination disorder (RD). It includes an overview of the current status of screening tools, questionnaire measures, and diagnostic instruments. Screening instruments are available for all three disorders; however, for pica and RD, these typically include single screening items only and do not cover any specific features of these presentations. Only one questionnaire suitable for clinical populations is included, covering ARFID only. Standardized diagnostic interviews are limited to two covering both pica and RD, only one of which provides further clinical information. Of the five diagnostic instruments for ARFID described here, two include diagnostic items as well as allowing more detailed assessment of clinical features. There are a limited number of assessment measures available for all three disorders, with instruments for ARFID being the greatest in number and widest in terms of scope. A commonly encountered difficulty is that many assessment instruments do not adequately cover diagnostic exclusion criteria, which raises the likelihood of false positive findings. All currently available measures require further study to determine their reliability and validity.
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