👉 Killed research refers to studies, findings, or hypotheses that were previously investigated but have since been abandoned or deemed invalid due to various reasons such as methodological flaws, lack of reproducibility, or new evidence contradicting the original conclusions. These results are often discarded from academic records and databases, though they may still be referenced in discussions or critiques. The term "killed" underscores the irreversible nature of this abandonment, highlighting how scientific progress relies on continuous testing and refinement, where even promising but flawed research can lead to important insights that inform future work.