Section 3507 - License; registration required(a) No person shall engage in the practice of psychology or hold himself or herself out to the public in this State as being qualified to practice psychology; or use in connection with that person's name, or otherwise assume or use, any title or description conveying or tending to convey the impression that that person is qualified to practice psychology, unless such person has been duly licensed under this chapter.(b) Whenever a license to practice as a psychologist in this State has expired or been suspended or revoked, it shall be unlawful for the person to practice psychology in this State.(c) No person shall act as a psychological assistant or hold out that that person is a psychological assistant, unless such person has been duly registered by the Board under this chapter.24 Del. C. 1953, § 3506; 58 Del. Laws, c. 380; 62 Del. Laws, c. 314, §8; 70 Del. Laws, c. 57, § 1; 70 Del. Laws, c. 186, § 1.;