Maria João Fonseca|Patrício Costa|Leonor Lencastre|Fernando Tavares
A statistical approach to quantitative data validation focused on the assessment of students’ perceptions about biotechnology
Universidade do Porto|University of Minho|Universidade do Porto|Universidade do Porto
student awareness levels frequently used evaluate effectiveness educational policies promote scientific literacy last years several studies developed assess students perceptions towards science technology usually rely quantitative methods achieve broad characterizations obtain quantifiable comparable data although usefulness information depends validity reliability validation frequently neglected researchers limited background statistics context propose guideline implement statistical approach questionnaire validation combining exploratory factor analysis reliability analysis work focuses psychometric analysis data provided questionnaire assessing 1196 elementary high school students perceptions biotechnology procedural guidelines enhance efficiency quantitative inquiry surveys given discussing essential methodological aspects relevant criteria integrate theory practice