[Solved] The expression instructs us to _______. A) sum the scores. B) sum the scores and then subtract the mean. C) subtract every "ith" score from the mean. D) subtract the mean from each score and add up the deviations. Erectile Disorder: A type of sexual dysfunction where there is a failure to achieve or sustain an erection for sexual intercourse. Social-Cultural: pertains to the aspects of social and cultural environments that influence individuals' thoughts, behaviors, and interactions. Sexual Behavior: Activities related to physical intimacy or reproduction, which can vary widely among individuals and cultures. Online Pornography: Pornographic content available over the internet, accessible through various digital devices.