Browsing by Author "Lukman Abdul Rauf Laliyo"

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    Changes in students’ socioscientific reasoning in an environmental chemistry class : application of multi-facet rasch model
    (Common Ground Research Networks, 2024-12-13) Lukman Abdul Rauf Laliyo; Bambang Sumintono; Jafar La Kilo; Citra Panigoro
    The primary aim of this research is to evaluate the quality of change in socioscientific reasoning (SSR) among students through the application of the multi-facet Rasch model (MFRM) within a quasiexperimental quantitative research design. The study involved thirty-one students. All participants completed a ten-item test with open-ended questions. Student responses were assessed by five raters using a rubric, and the data were analyzed using the MFRM stacking technique. The analysis revealed that the data aligned with the MFRM measurements, and there were variations in students’ SSR scores between T1, T2, and T3. The postintervention change (T1–T2) demonstrated a positive shift, indicating the effectiveness of the intervention. However, postretention changes (T2–T3) showed a negative trend, suggesting a weakening of the intervention’s meaningfulness. When examining the nature of postintervention and postretention changes together, it became apparent that a significant proportion of students (71%) exhibited weak and inconsistent changes in their SSR, with some students experiencing anomalous shifts. Importantly for the accuracy of the MFRM measure, although the intervention initially resulted in positive changes, these changes did not persist in the postretention period. This suggests there is room for improvement in the long-term impact of the intervention on students’ SSR.
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    Measuring changes in hydrolysis concept of students taught by inquiry model : stacking and racking analysis techniques in Rasch model
    (Elsevier, 2022-03-18) Lukman Abdul Rauf Laliyo; Bambang Sumintono; Citra Panigoro
    This research aimed to employ stacking and racking analysis techniques in the Rasch model to measure the hydrolysis conceptual changes of students taught by the process-oriented guided inquiry learning (POGIL) model in the context of socio-scientific issues (SSI) with the pretest-posttest control group design. Such techniques were based on a person- and item-centered statistic to determine how students and items changed during interventions. Eleventh-grade students in one of the top-ranked senior high schools in the eastern part of Indonesia were involved as the participants. They provided written responses (pre- and post-test) to 15 three-tier multiple-choice items. Their responses were assessed through a rubric that combines diagnostic measurement and certainty of response index. Moreover, the data were analyzed following the Rasch Partial Credit Model, using the WINSTEPS 4.5.5 software. The results suggested that students in the experimental group taught by the POGIL approach in the SSI context had better positive conceptual changes than those in the control class learning with a conventional approach. Along with the intervention effect, in certain cases, it was found that positive conceptual changes were possibly due to student guessing, which happened to be correct (lucky guess), and cheating. In other cases, students who experienced negative conceptual changes may respond incorrectly due to carelessness, the boredom of problem-solving, or misconception. Such findings have also proven that some students tend to give specific responses after the intervention in certain items, indicating that not all students fit the intervention. Besides, stacking and racking analyses are highly significant in detailing every change in students’ abilities, item difficulty levels, and learning progress.