The Chihuahua is known by its small size, big ears, large, dark eyes and its eccentric personality. Some have even joked that the Chihuahua is not really a dog but a descended of rats. Although small in body and size, it is a strong, robust breed. The body is longer in length than its height, and the coat can either be long or short depending on the variety. Colors include brown, fawn, chestnut, and black and tan.
Case studies are descriptions of a real life experience, related to the field of study or training, which are used to make points, raise issues or otherwise enhance the participantsâ understanding and learning experience.
Case-Control Study vs. Cohort on a Timeline. OR stands for odds ratio and RR stands for relative risk. A case-control study is a type of observational study in which two existing groups differing in outcome are identified and compared on the basis of some supposed causal attribute.