Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/28579
Título: | A statistical approach to quantitative data validation focused on the assessment of students' perceptions about biotechnology |
Autor(es): | Fonseca, Maria João Costa, Patrício Soares Lencastre, Leonor Tavares, Fernando |
Palavras-chave: | Biotechnology education Exploratory factor analysis Elementary and high school Psychometric analysis Questionnaire validation Reliability |
Data: | 2013 |
Editora: | Springer |
Revista: | SpringerPlus |
Resumo(s): | Student awareness levels are frequently used to evaluate the effectiveness of educational policies to promote scientific literacy. Over the last years several studies have been developed to assess students' perceptions towards science and technology, which usually rely on quantitative methods to achieve broad characterizations, and obtain quantifiable and comparable data. Although the usefulness of this information depends on its validity and reliability, validation is frequently neglected by researchers with limited background in statistics. In this context, we propose a guideline to implement a statistical approach to questionnaire validation, combining exploratory factor analysis and reliability analysis. The work focuses on the psychometric analysis of data provided by a questionnaire assessing 1196 elementary and high school students' perceptions about biotechnology. Procedural guidelines to enhance the efficiency of quantitative inquiry surveys are given, by discussing essential methodological aspects and relevant criteria to integrate theory into practice. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/28579 |
DOI: | 10.1186/2193-1801-2-496 |
ISSN: | 2193-1801 |
Versão da editora: | http://www.springerplus.com/content/2/1/496 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | ICVS - Artigos em revistas internacionais / Papers in international journals |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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fonseca mj_springer plus 2013.pdf | 346,26 kB | Adobe PDF | Ver/Abrir |