A hearing assistance suitability determining device (100) that determines a suitability including information as to whether or not a subject can clearly hear speech using dichotic hearing assistance, the device including: a hearing ability information input unit (103a) that receives hearing ability information of the subject; a hearing ability type determining unit (105) that determines at least one of hearing ability types that corresponds to the hearing ability information, based on frequency characteristics of the hearing ability information; a suitability determining unit (106a) that determines a suitability of the subject for dichotic hearing assistance based on the at least one hearing ability type determined by the hearing ability type determining unit; and a suitability presenting unit (108) that presents the suitability determined by the suitability determining unit, wherein the suitability determining unit determines, by referring to a correspondence relationship, the suitability based on an amount of clarity improvement for a speech sound that corresponds to the at least one hearing ability type determined by the hearing ability type determining unit, the correspondence relationship indicating, for each of the hearing ability types, an amount of clarity improvement for a speech sound that is a degree by which a clarity of speech perceived by the subject is improved by the dichotic hearing assistance.
展开▼
