Development of Teacher Self-Efficacy Scale Towards the Education of Individuals with Special Needs: Validity and Reliability Study

Abstract

The aim of this study is to develop a Teacher Self-Efficacy Scale Towards the Education of Individuals with Special Needs. The study group was determined by using convenient sampling method and it consisted of teachers teaching different subjects at primary, secondary and high school levels. The steps followed in the development of the scale were creating an item pool, content validity calculations and preparing the draft scale, piloting, construct validity and reliability calculations, and preparing the finalized version. Exploratory Factor Analysis (EFA) and Confirmatory Factor Analysis (CFA) were used for the construct validity and reliability calculations. The results of EFA revealed a structure with 12 items and a single factor that explained 72% of the variance. CFA showed that fit index values for the structure of the finalized version were within the acceptable range. The internal consistency coefficient and combined reliability values of the scale were found to be higher than .70 and mean variance values higher than .50. The results of the study concluded that developed scale was a valid and reliable scale measuring self-efficacy of teachers.

Keywords

• Education
• Teacher
• Self-efficacy
• Individual with special need

Özel Gereksinimli Bireylerin Eğitimine Yönelik Öğretmen Öz Yeterlik Ölçeği’nin Geliştirilmesi: Geçerlik ve Güvenirlik Çalışması

Abstract

Bu araştırmanın amacı Özel Gereksinimli Bireylerin Eğitimine Yönelik Öğretmen Öz Yeterlik Ölçeği’nin geliştirilmesidir. Araştırma grubu kolay ulaşılabilir örnekleme yöntemi ile belirlenen ilk, orta ve lise kademelerinde farklı branşlarda görev yapan öğretmenlerden oluşmaktadır. Ölçme aracının geliştirilmesinde madde havuzunun oluşturulması, kapsam geçerliği tespiti ve taslak ölçeğin hazırlanması, ön uygulamanın yapılması, yapı geçerliği tespiti ve güvenirlik hesaplaması, ölçeğe son şeklinin verilmesi süreçleri izlenmiştir. Ölçek geçerlik ve güvenirliğinin sınanmasında açımlayıcı faktör analizi (AFA) ve doğrulayıcı faktör analizinden (DFA) yararlanılmıştır. AFA sonucunda 12 maddenin yer aldığı, tek faktörlü ve varyansın %72’sini açıklayan bir yapı elde edilmiştir. DFA sonucu nihai ölçeğe ait yapının uyum indeks değerlerinin kabul edilebilir aralıkta olduğuna yönelik kanıtlar sağlanmıştır. Ölçme aracına ait iç tutarlılık katsayısı ile bileşik güvenirlik değerlerinin .70’ten ve çıkarılan ortalama varyans değerinin .50’den yüksek bir değere sahip olduğu tespit edilmiştir. Sonuç olarak; geliştirilen ölçeğin öğretmenlerin öz yeterliklerini geçerli ve güvenilir olarak ölçebilen bir ölçme aracı olduğu tespit edilmiştir.

Keywords

• Eğitim
• Öğretmen
• Öz yeterlik
• Özel gereksinimli birey

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