“…Recently, cognitive tests for moderate-to-severe dementia patients, such as the Severe Impairment Battery (SIB), have gradually increased in number, showing clinical utility [10,11]. To our knowledge, the following tests exist for measuring cognitive function in severe dementia: SIB [12], Severe Cognitive Impairment Rating Scale (SCIRS) [13], Test for Severe Impairment (TSI) [14], Severe Mini-Mental State Examination (SMMSE) [15], Hierarchic Dementia Scale [16,17], Modified Ordinal Scales of Psychological Development (M-OSPD) [18], SIB-Short Version (SIB-S) [19], SIB-8 [20], Bedford Alzheimer Nursing Severity Scale (BANS-S) [21], Severe Impairment Rating Scale (SIRS) [22], Severe Cognitive Impairment Profile (SCIP) [23], Baylor Profound Mental State Examination (BPMSE) [24], and the Clinical Evaluation of Moderate-to-Severe Dementia (KUD; Swedish acronym) [25]. …”