Throughout the processes of direction, advice and support of research projects based on qualitative methodologies, mistakes have been made that affect the rigor and quality of these studies:

The most commonly committed error is associated with following guidelines pertaining to the quantitative methodology, to guide eminently given problems for a qualitative approach.

Among the observed faults we have:

1. Use the term variable to address the problem of study

2. Request operationalization of variables.

3. Ask about sampling procedures based on the idea of ​​population and sample.

4. suggest the application of procedures commonly used for the creation and validation of measurement instruments, for the validation of qualitative techniques.

5. Ignore the inductive and flexible nature of qualitative approaches (eg the approach of the problem, the purposes, etc. may be modified as the study progresses, even in the latter stages of it).

Another problem presented and associated with the aforementioned is that, in some cases, those who advise qualitative projects have no idea of ​​these methodologies, it is even happening at the postgraduate level, leading the consultant to focus the study from inadequate methods and even to change the subject of study.

It is fundamental to understand the logic of qualitative research, to know the epistemological and ontological assumptions, on which the methods are based.

There is still a great lack of knowledge about the qualitative methodology, even though it is questioned, its findings are questioned and reduced to non-scientific knowledge. ?