the most influential child researcher. He argued that babies and children are constantly trying to make sense of their reality and that it contributed to their intellectual development. According to Piaget, children develop hypotheses, conduct experiments and then reassess their hypotheses depending on what they observe. Piaget was the first to closely document children's actions and interpret them as consistent, calculated effort to test and learn about their environment. There is no universally accepted definition for curiosity in children. Most research on curiosity has been focused on adults and which typically used self-report measures are inappropriate and inapplicable for studying children. Curiosity is mostly thought of as attributable to a mature person and is characterized in young children as a fledgling feature of their outlook on the world. Exploratory behaviour is commonly observed in children and is associated with their curiosity development. Several studies look at children's curiosity by simply observing their interaction with novel and familiar toys. There has been evidence found of a relationship between the anxiety children might feel and their curiosity. One study found that object curiosity in 11-year-olds was negatively related to psychological maladjusted so children who exhibit more anxiety in classroom settings engaged in less curious behaviour. It has also been suggested that certain aspects of classroom learning is dependent on curiosity which can be affected by students' anxiety. Other measures of childhood curiosity have used exploratory behaviour as a basis but differing on how which parts of this behaviour is best to focus on. Some studies have examined children's preference for complexity/the unknown as a basis for their curiosity measure; others have relied on novelty preference as their basis. Researchers have also looked at the relationship between a child's reaction to surprise and curiosity. It has been suggested that children are further motivated to learn when dealing with uncertainty. It is argued that their reactions to not having their expectations met would fuel their curiosity more than the introduction of a novel or complex object would. Ethicality The trait of curiosity has been a subject of interest to philosophers. Curiosity has been recognised as an important intellectual (or ‘epistemic’) virtue, due to the role that it plays in motivating people to acquire knowledge and understanding of the world around them. It has also been suggested to be an important moral virtue, as curiosity can help humans find meaning in their lives and to