title: [Truth is what is useful].
abstract: Recalling a phrase which Buddha said "Truth is what is Useful" the author proposes to apply the most appropriate methodology for the research question which we deal with in each situation and at every moment.
authors.affiliation: Departamento Salud Pública, EUE, Universidad de Barcelona.
authors.forename: M Teresa
authors.initials: MT
authors.lastname: Icart Isern
mesh_terms: D019317:Evidence-Based Medicine; D015399:Nursing Research; D036301:Qualitative Research