statistical significance

Statistical significance is a key concept in data analysis and research used to determine whether the results of a study or experiment are likely to be genuine or occurred by chance. When a result is statistically significant, it indicates that the observed effect or relationship is unlikely to have happened randomly, according to a predefined confidence level (commonly 95%). This concept helps researchers draw meaningful conclusions, validate hypotheses, and make informed decisions based on empirical evidence. Understanding statistical significance is essential for interpreting data accurately and ensuring the reliability of scientific findings.