[Solved] Which of the following is another name for single-subject research? A) case study research B) qualitative research C) small-N research D) individual research Dietary Supplements: Products taken by mouth that contain a dietary ingredient intended to supplement the diet, such as vitamins, minerals, herbs, or amino acids. Marital Sexuality: The expression, experience, and dynamics of sexual relationships within the context of marriage. Erotic Behavior: Actions or practices that evoke or express sexual desire and excitement. Sexual Frequency: null