Browsing by Author "Ozmen, Kubra"

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    Conceptualisation and Development of The Physics Related Personal Epistemology Questionnaire (PPEQ)
    (2019) Ozmen, Kubra; Ozdemir, Omer Faruk; https://orcid.org/0000-0001-7838-8314; https://orcid.org/0000-0003-4715-195X; AAF-5305-2021; P-9253-2016
    This study was designed to develop an assessment tool to measure high school students' personal epistemology (PE) in the physics domain by using validation processes. Based on theoretical foundations of PE, the PPEQ was conceptualised on six hypothetical dimensions: structure of knowledge [SK], justification of knowledge and knowing [JK], changeability of knowledge [CK], equations in physics [EQ], quick learning [QL], and source of knowledge [source]. In total, 42-items were developed deductively for these dimensions, and a panel of experts assessed the content validity of the instrument. Subsequently, factor analyses were performed to obtain construct-related evidence. First, exploratory factor analysis (EFA) was performed on the data collected from 362 ninth graders. EFA yielded a six-factor solution which excluded the EQ and divided SK into two dimensions: coherent SK and hierarchical SK. Second, confirmatory factor analysis (CFA) was conducted with the remaining 27-items on data collected from a new sample of 350 ninth graders. The CFA results confirmed that the PPEQ assesses six factors emerged from EFA. Internal consistency of the PPEQ was also found to be very high with Cronbach's alpha reliability coefficient of .92, and the coefficients of dimensions ranged from .71 to .83.
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    Health Science Students' Conceptual Understanding of Electricity: Misconception or Lack of Knowledge?
    (RESEARCH IN SCIENCE EDUCATION, 2024) Ozmen, Kubra
    While many university health science programs include physics courses to raise knowledge and understanding of physical science concepts, they are still far from addressing the needs of that science health profession. This study aimed to investigate the effect of an introductory physics course on first-year physiotherapy and rehabilitation (PR) students' conceptual understanding of simple electric circuits. The study participants were students enrolled in the Physics II course. Eighty-two students registered for the course. Sixty students (73%) took the pretest, and 67 (81%) completed the posttest. 53 students (64%) took the pretest and posttest. This study adopts an exploratory research methodology that includes a one-group pretest-posttest design. The Simple Electric Circuits Diagnostic Test (SECDT) was used to assess students' conceptual understanding. The prevalence of misconceptions was relatively low (before and after instruction), and very few students developed sound conceptual understanding after instruction. The local reasoning model was the most frequent misconception PR students held. After instruction, students' overall confidence in their SECDT responses increased significantly. Interestingly, when the students were grouped into three achievement groups, the medium-achievement group fell into more misconceptions as their achievement increased compared to low- and high-achievement groups. These findings suggested that students' low SECDT scores were due to a lack of knowledge rather than misconceptions.