Phenomenological research is an interpretation of the subjects experiences. This can include such aspects as motives, means, ends, plans, expectations etc. You would either gather this data through interviews, writing or questionnaires. Depending on what you were looking for, you could develop a coding system which would give you a quantity to be measured. E.g., Length of sentences used, pauses in speech, references to being sad/happy etc. Another way of analyzing this type of data would be to ground your analysis in a theory,
a theory/theme that emerges from your data, rather than applying a theory to it. It would depend on what your subject is. I can help you a bit more by knowing a bit more. I have a book or two on this method and had to study it in my MSc.