Final answer:
The purpose of the Control Question Technique is to assess the truthfulness of responses.
Step-by-step explanation:
The purpose of the Control Question Technique is to determine the accuracy and validity of responses given by a subject by comparing them to control questions, which are questions that have known and expected answers.
By asking control questions alongside the main questions, researchers can assess the reliability and credibility of the subject's responses. The technique is commonly used in lie detector tests and surveys to distinguish truthful responses from deceptive ones.
Therefore, the purpose of the Control Question Technique is not to determine possible solutions or recommend a specific solution, but rather to assess the truthfulness of responses.