What are Common Challenges in Ensuring Scientific Validity?
Several challenges can impede scientific validity in cancer research:
Sample Size: Small sample sizes can lead to statistical insignificance and unreliable results. Selection Bias: Non-random selection of participants can skew results. Confounding Variables: Other variables may influence the results, making it difficult to establish a direct cause-effect relationship. Publication Bias: Studies with positive results are more likely to be published, leading to a skewed understanding of research findings.