What emotion did wheelchair users employ when managing interactions with "stand-up" people, in Cahill and Eggleston's study of people with handicaps?

All of Paulo and Geneva's children have moved away, started families and begun working on their careers. According to the text, Paulo and Geneva's home is now an "empty nest."

Indicate whether this statement is true or false.

Which of the following statements is true?

a. Punishment does not always work. b. The effectiveness of punishment depends solely on its force. c. Punishment should be applied intermittently. d. Punishment usually enhances the learning process.