Identify the theorists who studied attachment styles in young adults and developed an assessment tool to measure attachment style.

Dr. Chin is interested in determining the relationship between a student's attending class and the final grade received by the student. What type of research should he conduct?

A. case study B. observational C. correlational D. survey

Steven lied about his brother to avoid getting in trouble with his parents, but now he is experiencing extreme guilt. According to Freud, this guilt would arise due to the activity of the _____

a. Oedipal complex b. Ego c. Superego d. Libido