An anthropologist studying a social group observes that people shake hands when greeting one another and concludes that handshaking is universal among human beings. This study is faulty because the anthropologist has not been

comparative    

Explanation:

Comparative study: The term "comparative study" is described as a study that is being utilized by an experimenter or researcher to quantify and determine the relationship that exists between two or more than two variables by analyzing or observing distinct groups that are being exposed to different treatments either by circumstances or by choice. However, it focuses on two or more than two familiar conditions, groups, or individuals by making a comparison between them.

As per the question above, the given statement signifies that the given study is faulty because the anthropologist has not been comparative.

answer: fact: italy has over 300 islands ranging from extremely small uninhabited islands to the huge island of sicily.

explanation:

opinion: italy has way to many islands