According to Thomas and Chess, who carried out a large-scale study of infants in the New York Longitudinal Study, what percentage of children were found to be "difficult babies"?

The expectancy theory of job satisfaction states that we decide how happy we are at work based on our comparison of our own situations to the other workers around us

Indicate whether this statement is true or false.

Ethan and Lydia just got a new boss at work. Ethan views this as an interesting change and one that may advance his personal growth. Lydia views this change as negative and a possible threat to her job security. These differences exemplify which aspect of hardiness?

a. commitment c. challenge b. control d. all of these