Answer:
The correct answer to the following question will be "Self-report".
Step-by-step explanation:
- A self-report would be any form through which a person is asked regarding their certain thoughts, behaviors, values and many more.
- Types of self-reports include interviews and considerations; they are often used in observational studies and research as just a means of gaining input from the respondents and it is much more possible that this approach is used in the work of Dr. Rubeus.
Therefore, it's the right answer.