Develop and Analyze Instruments of Scientific Literacy Skills with Integrated Science (SLS-IS) Based on the 2015 PISA Standard via Rasch Model on Tegal-Students’
Abstract
In this study it was aimed to develop and analyze instruments of integrating scientific literacy skills scale (ISLS) for science program students of senior high school with a Rasch Model Analysis. In developing and analyzing instruments we use the Messick’s validity (1996) approach which consists of five aspects including content, substantive, structural, external, and consequential. ISLS consisted of 14 cases of integrated science presented in the form of a testlet. Each case consists of three questions given to scientific literacy competencies according to PISA 2015 standards. The research design uses the ADDIE procedural model (Analysis, Design, Development, Implementation, Evaluation). Participants consisted of 310 grade XII students of the science program from two senior high schools in Tegal City, Indonesia. Constructive validation with Rasch modelling gives the following results. The level of conformity of the items is in the range of -3 to 4. All the items that are suitable for modelling. As many as 95.16 % of student responses match modelling. Has no items containing DIF. It can be said that ISLS, which consists of 14 items, is suitable for measuring Integrating Scientific Literacy Skills for science program students of senior high school.
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282282
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0x95644003c57E6F55A65596E3D9Eac6813e3566dA
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282282
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10.17478/jegys.781583
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