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Tradução E Validação De Um Questionário De Duas Camadas Sobre Circuitos Elétricos Simples

Year: 2024

Type: article

Abstract: Research on teaching electric circuits has highlighted students´ difficulties in the construction of a solid and scientifically consistent mental model. A two-tier simple electric circuits test (2T-SEC Test), designed to assess knowledge about simple electric circuits, was translated and administered to 223 students in the 9th and 10th grades of a Portuguese school, with the aim of validating a Portuguese language version of the questionnaire. An Item Response Theory analysis (two-parameter logistic model) was used in the validation. The internal consistency of the test for the 9th and 10th grades (Cronbach's alpha of 0,88 and 0,86, respectively) and the estimates of the item parameters (discrimination and difficulty) show that the test is reliable, valid, and suitable as a post-test for middle/high school Portuguese students. The results indicate that the questionnaire has greater information for students with an intermediate level of performance and confirm the existing literature: the concept of electrical voltage is delicate and complex, and most students take time to develop a solid and consistent mental model of electric circuits.

Source: Investigações em Ensino de Ciências

DOI: 10.22600/1518-8795.ienci2024v29n3p153

Authors: Ana Rita Lopes Mota, Patrícia Costa

Institutions: Universidade do Porto, Iscte – Instituto Universitário de Lisboa, University of Lisbon, Centro de Matematica Aplicada à Previsão e Decisão Económica

Language: English

Topic: Science Education and Pedagogy

Subfield: Education

Field: Social Sciences

Domain: Social Sciences

SDG: Quality education

Open Access status: diamond

OpenAlex ID: W4405803490

FWCI:

Cites: 26

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Related to: 10