The device of the present invention contains a recording unit (2) on which a plurality of words having possibilities of being misheard are recorded in a state of being classified on the basis of highness and lowness of the possibilities, a question output unit (4) that outputs, by voice sound, a question sentence containing at least one of the words having possibilities of being misheard, an input unit (5) that receives input of a response to the question sentence, a determining unit (12) that determines at least whether the hearing ability of a respondent is decreased or not on the basis of the content of the response input into the input unit (5), and a result output unit (6) that outputs a determination result determined by the determining unit (12).
