[Solved] The sum of squares interaction represents the variation due to the effect that Factor A has on Factor B or the effect that Factor B has on Factor A. Pornography: Materials (such as books, magazines, videos, or online content) depicting sexual content intended to cause sexual arousal. Masturbation: The self-stimulation of the genitals for sexual pleasure. Sexual Response Sequence: The series of psychological and physiological changes that occur in the body as a person becomes sexually aroused and participates in sexually stimulating activities. Pedophiles: Adults who are sexually attracted to prepubescent children, a condition classified as a psychiatric disorder.