Personally I like the term STUDY thus the name of this site Bigfoot Study.com
Let's look at the term "study."
In common parlance, we hear the word used in three ways:
First, the word is used as somewhat of a synonym for observation--for seeing--for looking--for watching. A person who sees something, perhaps for the first time, might "study" the thing for a while, meaning that he looks at it or watches it for a period of time exceeding just a passing glance. A person might say, I saw a creature that I didn't recognize and stood there and "studied" it for 10 or 15 minuties, meaning that he watched it for a while. This usage is probably a little bit archaic.
Second, the word is used in connection with teaching and learning--with the process of education. A person in an educational endeavor "studies" the material that is presented to him by his educators in order to learn that material. We hear students say, for example, that they are "studying" for a test. This is a very common use of the word "study."
Third, the word is used to indicate an endeavor that approaches, or is, research. A person who wants to know if an activity will produce certain results, might design a double blind, O-X-O "study" to test a hypothesis that people taking a certain food additive will have a smaller risk of getting sick. He identifies an experimental group and a control group. The experimental group is given the food additive for the proper time, and the frequency of sickness in the group is observed and recorded. The control group is given what they think is the food additive, but isn't, for the same period of time, and, again, the frequency of sickness in the group is observed and recorded. If those not actually taking the food additive get sick with a statistically significant greater frequency, the "study" has probably shown that the food additive prevents sickness to some degree. Hence, you have the words, "Studies show...."