Final answer:
Semivariance does not treat deviations in both directions the same way; it only considers negative deviations from the mean, making the statement false.
Step-by-step explanation:
The statement that Semivariance treats deviations in both directions in the same way is false. Semivariance is a measure used in risk analysis that considers only the negative deviations from the mean or a target value, typically focusing on the 'downside' risk. This means it only accounts for those returns that fall below the mean, unlike variance, which considers both the negative and positive deviations, reflecting the average squared deviations of all outcomes from the mean.