title: [Semiexperimental and experimental design and evaluative research].
authors.affiliation: Equipo CESCA, Madrid.
authors.forename: J
authors.initials: J
authors.lastname: Gérvas Camacho
authors.forename: M
authors.initials: M
authors.lastname: Pérez Fernández
mesh_terms: D005069:Evaluation Studies as Topic; D006801:Humans; D015203:Reproducibility of Results; D012107:Research Design; D013223:Statistics as Topic / Q000379:methods
vernacular_title: El diseño semiexperimental y experimental y la investigación evaluativa.