To choose the research topic could ask the following questions that guide:

Is the topic of interest (for whom)?

Is there information about the phenomenon or similar?

Who centralizes this information?

What results obtained previously?

Is unpublished work?

Useful to resolve, if possible, the health problems of the area in which we are serving, or will it help change the reality of any environment to conduct research, or substantially modify our reality briefly, will determine what knowledge we want to investigate, "we must question everything before starting an investigation because once started is impossible to amend errors"

Feasible, ie, from the level of affordable service in which we are working and available resources.

Practice, the results are immediately applicable in the field under study with this transforming the existing reality and even creating an alternate reality for better conditions.

Originality, relates that the problem has not been investigated before, or if already performed the study, we focus on another aspect again with the same category of ORIGINAL, this can be done by performing the same study but changing the focus, variable values , rating scales or other methodological aspects.

Relevance, do not forget to be considered practical or theoretical research that holds and what will be the use that will be given to this knowledge, practicality among other aspects related to the researcher.

Interest, spontaneous or directed the investigator, whatever should encourage the researcher to conclude his research responding to the phenomena of the problem creators.