A research team performs a meta-analysis of eight randomized controlled trials evaluating Drug X on lowering systolic blood pressure. The forest plot shows individual study mean differences ranging from −3 to −8 mm Hg, and the pooled mean difference is −5 mm Hg (95% CI: −7 to −3). The calculated I² statistic is 65%. Which of the following best describes the implication of this I² value?
Right-click options to strike through eliminated choices