While doing a study of temperament, Dr. Taylor is studying how toddlers react when toys they are playing with are removed from their reach and placed on a high shelf. What dimension of temperament is Dr. Taylor most likely assessing?

The answer is negative affectivity.

Explanation:

This personality dimension involves what are usually considered negative emotions. A person with high negative affectivity will likely present emotions such as fear, anger, sadness or anxiety.

Negative affectivity is associated with the neuroticism trait of personality. It is believed that a high level of this trait is often a predictor of mental disorders.