psychometrics and validation of the intensive care unit memory assessment tool in the iranian population

Background: the intensive care unit memory (icum) assessment tool is a practical toolfor memory monitoring after the discharge from icu.objectives: this psychometric study purported to validate icum for a sample populationof iranian patients hospitalized in icu.materials & methods: this research was a descriptive-analytical study that was conductedat ahvaz university of medical sciences in 2022. a total of 96 patients were selectedthrough the convenience sampling method and were asked to complete the questionnaire 2weeks and 8 weeks after their discharge from the hospital. exploratory factor analysis wasrun to validate the tool’s structure. the reliability of the icum tool was checked by the testretestmethod and the cronbach alpha coefficient for memory subscales.results: to increase the qualitative face and content validity of the tool in persian, some vagueitems were modified according to the suggestions of the participants, language, and nursingexperts. for the quantitative face validity, the item coefficient was calculated, and the minimumscore obtained was 4.4. for the quantitative content validity, the content validity ratio (cvr)and content validity index (cvi) were calculated. the minimum obtained scores were cvi=0.7and cvr=0.6. thus, all the items were confirmed. the implementation of the factor analysiswas confirmed with kmo=0.65. the highest cronbach alpha coefficient for delusional memorywas 0.62 and the highest test-retest correlation for factual memory was 0.95.conclusion: the persian version of icum has strong test-retest reliability, but weakinternal consistency reliability. it is recommended that future studies evaluate the tool’sreliability over an extended period.