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BAŞARILI OKUL LİDERLİĞİ ÖLÇEĞİ (BAŞOL): BİR GEÇERLİK VE GÜVENİRLİK ÇALIŞMASI

Bu araştırmada, öğretmenlerin gözünden başarılı okul liderliği uygulamalarının değerlendirmesini sağlayacak geçerli ve güvenilir bir ölçme aracı geliştirilmesi amaçlanmıştır. Madde havuzunun oluşturulmasında başarılı okul liderliği uygulamalarının bir araya getirildiği makaleler temel alınmıştır. Çalışma kapsamında alınan uzman görüşleri ve ön uygulamalarla oluşan form, ölçeğin yapı geçerliğini test etmek için gerekli verilerin toplanmasında kullanılmıştır. Açımlayıcı faktör analizinde 249, doğrulayıcı faktör analizinde 210 öğretmen olmak üzere toplam 459 katılımcı araştırmaya dâhil edilmiştir. Açımlayıcı faktör analizi sonucunda açıklanan toplam varyans oranının % 66.816; doğrulayıcı faktör analizi sonucunda ise modelim uyum değerlerinin χ²/sd=2.278, CFI=.95, GFI=.90, AGFI=.86, RMSEA=.078, SRMR=.041, RMR=.032, NNFI=.94, NFI=.91 olduğu görülmüştür. Cronbach Alpha güvenirlik değeri .95 olarak hesaplanmıştır. Analizler sonunda 13 madde ve tek faktörden oluşan bir ölçek elde edilmiştir. Araştırma sonuçları, Başarılı Okul Liderliği Ölçeği’nin (BAŞOL) ilkokul, ortaokul ve lisede görev yapan müdürlerin başarılı okul liderliği düzeylerini belirlemede kullanılabilecek geçerli ve güvenilir bir ölçme aracı olduğunu göstermektedir.

SUCCESSFUL SCHOOL LEADERSHIP SCALE (SSLS): A VALIDITY AND RELIABILITY STUDY

This study aims to develop a valid and reliable measurement tool that will enable the evaluation of successful school leadership practices from the teachers’ perspective. The items of scale has been based on successful school leadership practices reviewed in the related articles. The initial form of the scale, which was formed with expert opinions and pre-applications within the scope of the study, was used to collect the data to test the construct validity of the scale. A total of 459 participants, 249 teachers in the exploratory factor analysis and 210 teachers in the confirmatory factor analysis, were included in the study. 66.816% of the total variance rate explained via the exploratory factor analysis. After the confirma- tory factor analysis, the fit values of the model were calculated as χ² / sd = 2.278, CFI = .95, GFI = .90, AGFI = .86, RMSEA = .078, SRMR = .041, RMR = .032, NNFI = .94, NFI. = .91. Cronbach Alpha reliability value was calculated as .95. The fin- dings show that the scale consists of 13 items and a single factor. Research results indicate that Successful School Leadership Scale (SSLS) is a valid and reliable measurement tool that can be used to determine the successful school leadership levels of principals working in primary, secondary and high schools.

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