If one identical twin is depressed, what percent chance does the other twin have of suffering depression?

Researchers have recently used brain scans to study people with antisocial personality disorder. What have they uncovered about the brains of these individuals, as compared to control participants?

a) Their limbic systems tend to be enlarged. b) They have less volume in the prefrontal cortex. c) They have larger than normal ventricular spaces. d) Large areas of the corpus callosum have become calcified.

The tendency for people to take personal credit for their good actions, but blame the situation for their mistakes, is known as the:

a. fundamental attribution error. b. just-world bias c. validity effect. d. self-serving bias.