title: [Criteria of scientific validity in research].
abstract: The purpose of this article is to present the evaluative criteria of qualitative and quantitative research. Philosophical foundations of positivism, postpositivism and constructivism are explored. Triangulation and crystallization expose the controversies about them. Finally, Lincoln and Guba criteria are retained for the evaluation of qualitative and quantitative research.
authors: Université du Québec à Rimouski, Canada.
authors: Céline
authors: C
authors: Pelletier
authors: Ginette
authors: G
authors: Pagé
mesh_terms: D015400:Clinical Nursing Research / Q000379:methods / Q000592:standards*; D006801:Humans; D019359:Knowledge; D016294:Models, Nursing; D015404:Nursing Methodology Research / Q000379:methods / Q000592:standards*; D010687:Philosophy, Nursing; D015203:Reproducibility of Results; D012107:Research Design / Q000592:standards*; D012586:Science / Q000592:standards*; D012680:Sensitivity and Specificity