Bilimin doğası ölçeğinin geliştirilmesi

Bu çalışmanın amacı, sınıf öğretmenliği, okul öncesi öğretmenliği, ilköğretim matematik öğretmenliği ve fen bilimleri öğretmenliği (Fizik, Kimya, Biyoloji ve Fen Bilgisi) bölümlerinde okuyan öğretmen adayları ve öğretmenleri için onların bilimin doğasına yönelik görüşlerini ortaya çıkaran bir ölçek geliştirmektir. Geniş bir literatür taraması ardından hazırlanan 35 maddeli ölçek 2011-2012 akademik yılının güz döneminde 228 öğretmen adayına (fen-sınıf-okul öncesi) uygulamıştır. Fen eğitimi ile ilgili dersler esnasında bu 35 maddenin üzerinden teker teker gidilerek öğretmen adaylarına maddeler hakkındaki fikirleri sorulmuştur. Ayrıca içerik geçerliliği için uzman görüşleri alındıktan sonra ölçek 30 maddeli 4lü ölçeklendirmeli önermelerden oluşturulmuştur. Bilimin doğası ölçeği 2011-2012 akademik yılının bahar döneminde 4 farklı üniversiteden (Abant İzzet Baysal, Akdeniz, Trakya ve Mersin) 644 öğretmen adayı ve Mersin ilinde devlet okullarında çalışan 11 fen ve teknoloji öğretmeni olmak üzere toplam 655 kişiye uygulanmıştır. Analizlerde SPSS programı kullanarak ilk önce açımlayıcı faktör analizi, daha sonra AMOS programı kullanarak doğrulayıcı faktör analizi yapılmıştır. Analizler sonucunda ölçeğin 5 faktörden (boyuttan) oluştuğu ve toplam madde sayısının 19 olduğu saptanmıştır. Yapılan güvenilirlik çalışmaları sonucunda tüm ölçeğin Cronbahs alpha iç tutarlılık katsayısı .83 bulunmuştur. Toplam 391 kişilik örneklem grubu ile AMOS programı ile doğrulayıcı faktör analizi yapılmıştır. Doğrulayıcı faktör analizi sonucuna göre χ2/df oranı 0,83 olarak hesaplanmıştır. Bu oran (0,83) ölçüm modelinin verilere iyi uyum sağladığını göstermektedir. Bütün bu sonuçlar ölçeğin 5 boyutlu faktör yapısının ayrı bir örneklem üzerinde tekrar doğrulandığını göstermektedir.

Development of nature of science scale

The purpose of this study is to develop nature of science scale to assess pre-service class, early childhood, mathematics, and science teachers and in-service teachers views on nature of science. After the review of a wide range of literature,the 35-item scale was applied 228 pre-service teachers (pre-school-class-science) at the beginning of the fall semester of 2011-2012 academic years. During lectures on science education by going one by one out of these 35 items on the ideas of preservice teachers were asked substances. In addition consulted experts opinions for content validity. The new 30-item scale was modified 4-scal propositions. The Nature of Science Scale was applied in four different universities in the spring semester of the 2011-2012 academic year (Abant Izzet Baysal, Akdeniz, Trakya and Mersin) 644 teachers and 11 science and technology teachers working in public schools in the province of Mersin, a total of 655 people. First using the program SPSS exploratory factor analysis, confirmatory factor analysis was then conducted using the AMOS program. After the analyses, five factors of the scale were determined and the total number of items were found to be 19. The reliability of the scale as a result of all Cronbah s alpha internal consistency coefficient was .83. With a sample of 391 preservice teachers confirmatory factor analysis was conducted with AMOS program. According to the results of confirmatory factor analysis χ2/df rate was calculated as 0.83. This ratio (0.83) shows that the measurement model fit the data well. All this results in 5-dimensional factor structure of the scale has been confirmed again on a separate sample.

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