The materials used consisted of standard wide-mouth beakers and taller and narrower graduated glass containers filled with various quantities of colored liquid. The liquid used was ordinary tap water containing blue food dye. The wide-mouth beakers had a maximum volume approximately three times that of the maximum volume of the taller glass containers. The height of the wide-mouth beakers was 5.5 inches and the height of the taller glass containers

Jean Piaget: The Man Who Listened to Children As a distinct form of scientific study, psychology does not boast a long history. During the earliest years of its practice, the study was used in a sort of "one size fits all" manner, with the client undergoing the same sort of analysis regardless of gender, age, or background. As more information was gathered through actual interaction with subjects from different parts of

Reward motivates a particular action and discourages another and this observation appears to be applicable across all ages. Growing evidence, however, reveals that older adults could be less influenced by the consequences of their behavior than younger ones and suggests that reward has greater appeal to younger adults than to older adults. Related literature supported the view that older adults were less susceptible to motivation, such as financial gain,