Comparison of Alpha, Stratified Alpha, and Omega Reliability Coefficients in Multidimensional Test Structures

Sümeyra Soysal

Makale detayları

Comparison of Alpha, Stratified Alpha, and Omega Reliability Coefficients in Multidimensional Test Structures

Yazarlar:

Sümeyra Soysal

Yayıncı:

Necmettin Erbakan University

Ana Başlıklar:

Alan Eğitimleri

Dergi:

Ahmet Keleşoğlu Eğitim Fakültesi Dergisi Vol.5 Issue 1, pp.213-236

Belge Tipi:

Makale

Yayın Tarihi:

3/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001281650

pISSN:

2687-1750

Anahtar kelimeler:

Özet:

 The aim of this research is to examine the reliability of multidimensional test structures. For this purpose, the estimations of the Cronbach Alpha, Stratified Alpha and Omega coefficients for a two-dimensional test were examined in the the data simulated under sample size 100,200 and 400, correlation between dimensions 0.00 and 0.50, correlation between items 0.30-0.50 and 0.65, test length 10 and 20 and the number of items per dimensions 5-5, 7-3, 10-10 and 15-1. As a result of the research, it was found that the Stratified Alpha and Omega values were higher than the general Alpha value.. In addition, it was concluded that the inter-item correlation condition was more effective than the interdimensional correlation on the estimations of the three reliability coefficients.

 The aim of this research is to examine the reliability of multidimensional test structures. For this purpose, the estimations of the Cronbach Alpha, Stratified Alpha and Omega coefficients for a two-dimensional test were examined in the the data simulated under sample size 100,200 and 400, correlation between dimensions 0.00 and 0.50, correlation between items 0.30-0.50 and 0.65, test length 10 and 20 and the number of items per dimensions 5-5, 7-3, 10-10 and 15-1. As a result of the research, it was found that the Stratified Alpha and Omega values were higher than the general Alpha value.. In addition, it was concluded that the inter-item correlation condition was more effective than the interdimensional correlation on the estimations of the three reliability coefficients.

 The aim of this research is to examine the reliability of multidimensional test structures. For this purpose, the estimations of the Cronbach Alpha, Stratified Alpha and Omega coefficients for a two-dimensional test were examined in the the data simulated under sample size 100,200 and 400, correlation between dimensions 0.00 and 0.50, correlation between items 0.30-0.50 and 0.65, test length 10 and 20 and the number of items per dimensions 5-5, 7-3, 10-10 and 15-1. As a result of the research, it was found that the Stratified Alpha and Omega values were higher than the general Alpha value.. In addition, it was concluded that the inter-item correlation condition was more effective than the interdimensional correlation on the estimations of the three reliability coefficients.

 Bu araştırmanın amacı, çok boyutlu test yapılarının güvenirliğinin incelenmesidir. Bu amaçla iki boyutlu bir test için örneklem büyüklüğü 100,200 ve 400, boyutlar arası korelasyon 0,00 ve 0,50, maddeler arası korelasyon 0,30-0,50 ve 0,65 , test uzunluğu 10 ve 20 ve boyutlara düşen madde sayısı 5-5, 7-3, 10-10 ve 15-1 koşulları altında üretilen verilerden Cronbach Alfa, Tabakalı Alfa ve Omega katsayılarının kestirim değerleri incelenmiştir. Araştırma sonucunda Tabakalı Alfa ve Omega değerlerinin genel Alfa değerinden yüksek fakat birbirine benzer sonuçlar verdiği bulunmuştur. Ayrıca üç güvenirlik katsayısının kestirimleri üzerinde maddeler arası korelasyon koşulunun boyutlar arası korelasyona göre daha etkili olduğu sonucuna ulaşılmıştır.

Makale detayları

Comparison of Alpha, Stratified Alpha, and Omega Reliability Coefficients in Multidimensional Test Structures

Yazarlar:

Sümeyra Soysal

Yayıncı:

Necmettin Erbakan University

Ana Başlıklar:

Alan Eğitimleri

Dergi:

Ahmet Keleşoğlu Eğitim Fakültesi Dergisi Vol.5 Issue 1, pp.213-236

Belge Tipi:

Makale

Yayın Tarihi:

3/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001281650

pISSN:

2687-1750

reliability

Cronbach alpha

stratified alpha

omega

güvenirlik

Cronbach alfa

tabakalı alfa

omega

Sayı

Makale detayları

Yazarlar: Sümeyra Soysal

Yayıncı: Necmettin Erbakan University

Ana Başlıklar: Alan Eğitimleri

Dergi: Ahmet Keleşoğlu Eğitim Fakültesi Dergisi Vol.5 Issue 1, pp.213-236

Belge Tipi: Makale

Yayın Tarihi: 3/2023

Belge Dili: Türkçe

Document ID (Org No.): 2001281650

pISSN: 2687-1750

Sayı

Yazarlar:

Sümeyra Soysal

Yayıncı:

Necmettin Erbakan University

Ana Başlıklar:

Alan Eğitimleri

Dergi:

Ahmet Keleşoğlu Eğitim Fakültesi Dergisi Vol.5 Issue 1, pp.213-236

Belge Tipi:

Makale

Yayın Tarihi:

3/2023

Belge Dili:

Türkçe

Document ID (Org No.):

2001281650

pISSN:

2687-1750