Make believe, also known as pretend play, is a loosely structured form of play that generally includes role-play, object substitution and nonliteral behavior. What separates play from other daily activities is its fun and creative aspect rather than being an action performed for the sake of survival or necessity. Children engage in make believe for a number of reasons. It provides the child with a safe setting to express fears and desires. When children participate in pretend play, they are integrating and strengthening previously acquired knowledge. Children who have better pretense and fantasy abilities also show better social competence, cognitive capabilities, and an ability to take the perspective of others. In order for the activity to be referred to as pretend play, the individual must be intentionally diverting from reality. The individual must be aware of the contrast between the real situation and the make believe situation. If the child believes that the make believe situation is reality, then he/she is misinterpreting the situation rather than pretending. Pretend may or may not include action, depending on whether the child chooses to project their imagination onto reality or not.
The interest in pretend play advanced through three significant stages. The initial stage was during the 1920s and 1930s when research in play had gained popularity. During this time, little or no empirical findings specified on pretend play. A revival of interest starting in the late 1940s signified the second stage. The new mission was to find how pretend play related to the developing personality of a child. A common hypothesis during this period was that pretend behavior projected a child's inner feelings and reflected their experiences in their everyday lives. The most recent stage, which persists until today, began in the 1970s. Research in this stage is greatly influenced by Jean Piaget's studies and theories, either in terms of finding evidence to support it or to falsify it.
The first occurrence of pretend play emerges after the infant completes their first year. The prevalence and frequency of pretense increases between 1 and a half to 2 and a half years of age. The first stage of pretense generally starts with object substitution. By 3 years, a child can easily distinguish between real life events and pretense. Children within 3 to 6 years, who have acclimated to pretend play, show an increase in interactive pretend play. This means that they participate in self-other relations, giving the doll a more active role (e.g., driving a car) instead of a passive recipient role(e.g., being fed). At the age of three, children's pretense remains close to their real life experiences. A three-year-old girl may pretend that she and her mother are going grocery shopping. In this case, both her role in the relationship and the activity she is taking part in are literal. There is then an increase in the mastery of role play within the ages of 4 and 5 years. During the fifth year, the child shows ability to incorporate forms of relationships into their play. They are no longer limited to the role of child, instead they can be a parent or a spouse, or expand further by adopting the role of members in society such as policemen, doctors and so forth.