Psychometric equivalence of the Hasegawa Dementia Scale-Revised with the Mini-Mental State Examination in stroke patients.

Responses to the Hasegawa Dementia Scale-Revised and the Mini-Mental State Examination were examined for 49 stroke patients to investigate the psychometric equivalence between the two tests. Pearson product-moment correlation and Spearman rank-order correlation between the two tests were 0.87 and 0.78. Each test's scores significantly correlated with the Full Scale IQs on the Wechsler Adult Intelligence Scale--Revised: 0.61 for Hasegawa's Dementia Scale and 0.69 for the Mini-Mental State Examination. These values indicate that the two tests are judged comparable measures for screening cognitive impairment in stroke patients.