46). Depending on the shape and size of a person's body, the theory will classify a person's mental tendencies into one of three categories known as cycloid, schizoid, and dysplastic. Cycloids are endomorphs, which means that a person has a soft and heavy body structure. Kretschmer noted that cycloids' personality traits range from normal to abnormal, and they are capable of committing only nonviolent types of property crimes (Schmalleger, 2014). In contrast, schizoids possess a mesomorphic, athletic, and muscular body type and tend to commit violent crimes and are more prone to being schizophrenic. Finally, dysplastics consist of a mixture of body types, but are described as highly emotional and unable to control themselves. As a result, dysplastics would most likely commit crimes of passion. Further expanding Kretschmer's work, Sheldon believed that the age groups of Kretschmer's studies were too