Stacey loses a loved one and thinks that she is 'not worthy of being happy.'This thought in turn causes her to feel sad, which causes her to isolate herself from her friends and family.The isolation makes her more unhappy and leads her to confirm her belief that she is 'not worthy of happiness.'This example best captures which of the following concepts in cognitive-behavioral therapy?

MCQs on the use of psychological methods, particularly when based on regular personal interaction, to help a person change behavior, increase happiness, and overcome problems.