A group of researchers undertake a research project. They devise a series of experiments to test their hypothesis. Their initial findings do not support their hypothesis. They repeat their experiments a number of times and the results of their later experiments support their hypothesis with statistical significance. The researchers write a paper describing only their later experiments and statistically significant results and submit it for publication. What type of bias may be taking place here? A. Expectation bias B. Observer bias C. Social desirability bias D. Selective outcome reporting bias E. Verification bias F. Publication bias