And then, from time to time, they'll take some of the food â whether it's bagged salad greens, breakfast cereal, or fruit juice â off the shelf and place it in front of a highly trained panel of experts who check the taste and smell and texture.
Primary research is defined as factual, firsthand accounts of the study written by a person who was part of the study. The methods vary on how researchers run an experiment or study, but it typically follows the scientific method. One way you can think of primary research is that it is typically original research.
Primary sources are written by the scientists that performed the experiment and are writing about it. They are normally found in peer-reviewed journals. Your example is of a primary source. Primary sources can cite other articles, but must be based on novel research. Secondary sources are commonly found in general magazines and newspapers in the science sections. They cite original research, and contribute nothing new or original to the report.