Victimization refers to a person being made into a victim by someone else and can take on psychological as well as physical forms, both of which are damaging to victims. Forms of victimization include (but are not limited to) bullying or peer victimization, physical abuse, sexual abuse, verbal abuse, robbery, and assault. Some of these forms of victimization are commonly associated with certain populations, but they can happen to others as well. For example, bullying or peer victimization is most commonly studied in children and adolescents but also takes place between adults. Although anyone may be victimized, particular groups (e.g. children, the elderly, individuals with disabilities) may be more susceptible to certain types of victimization and as a result to the symptoms and consequences that follow. Individuals respond to victimization in a wide variety of ways, so noticeable symptoms of victimization will vary from person to person. These symptoms may take on several different forms (e.g. psychological, behavioral, or physical), be associated with specific forms of victimization, and be moderated by individual characteristics of the victim and/or experiences after victimization.
Symptoms of victimization may include negative physical, psychological, or behavioral consequences that are direct or indirect responses (see physical symptoms section) to victimization experiences. Symptoms in these categories sometimes overlap, are closely related, or cause each other. For example, a behavioral symptom such as an increase in aggressiveness or irritability may be part of a particular psychological outcome such as posttraumatic stress disorder. Much of the research on symptoms of victimization is cross-sectional (researchers only collected data at one point in time). From a research perspective this means that the symptoms are associated with victimization, but the causal relationship is not always established and alternative explanations have not been ruled out. Some of the symptoms described also may put individuals at risk for victimization. For example, there may be a two-way relationship between victimization and certain internalizing symptoms such as depression or withdrawal, such that victimization increases these symptoms, and individuals exhibiting these symptoms may be targeted for victimization more often than others.