Finalized as a pilot tool in the summer of 2023 as doctoral dissertation research, the Integrative Review Methodology Appraisal Tool (IRMAT, “ear-mat”) is designed to appraise whether recommended methodological elements are present in published integrative reviews in the nursing literature. The IRMAT demonstrates evidence of construct validity, internal consistency reliability, and inter-rater reliability. The IRMAT has implications for educating doctoral nursing students and nurses in clinical practice on appraising integrative reviews in the nursing literature. The IRMAT may also be used by editors and peer reviewers to appraise submitted nursing integrative reviews prior to publication. The IRMAT User Guide includes all 18 items, with general instructions and descriptions of each item alongside a rubric to assist with scoring each item, and is available in PDF and Word formats.