________ means that the observed differences between scores is probably not due to chance variation between the samples.

A) Standard deviation
B) Statistical significance
C) The range
D) The normal curve

Statistical significance is the term used to describe the likelihood that the differences observed between two groups or samples is not due to chance. This is typically determined by calculating a p-value, which is the probability that the observed differences occurred by chance. If the p-value is less than a predetermined significance level (usually 0.05), then the differences are considered statistically significant.