Bridget's boss describes her as "loyal, strong, and conscientious." These relatively stable characteristics are known as

The age of viability refers to the age at which a fetus might survive if born

Indicate whether this statement is true or false.

The principle that the just noticeable difference of any given sense is a constant fraction or proportion of the stimulus being judged is called ______

a. the opponent-process principle b. the doctrine of specific nerve energies c. the phi phenomenon d. Weber's law