Which value denotes a high correlation?

A correlation coefficient ranges from -1 to 1, where values closer to 1 indicate a stronger positive correlation between two variables. A value of .8 signifies a high degree of correlation, suggesting that as one variable increases, the other variable tends to also increase significantly. This strong positive relationship is valuable in understanding how closely the two variables move together.

In contrast, values such as .2, .4, and .6 indicate progressively weaker correlations. A .2 represents a very weak correlation, where the relationship between the variables is minimal. A .4 suggests a moderate correlation, while .6 indicates a stronger, yet still not high, positive relationship. Therefore, .8 distinctly represents the highest correlation compared to the other options, making it the correct choice for denoting high correlation.