A Psychometric Analysis of The Mathematics Learning Disability Screening Scale Developed Through DSM-5
Küçük Resim Yok
Tarih
2025
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Purpose: This study, it was aimed to develop a valid and reliable measurement tool by evaluating the psychometric properties of the Mathematics Learning Disabilities Screening Scale (MLDSS) for elementary and secondary school students. In this context, a measurement tool that is culturally and linguistically appropriate for the Turkish context and overcomes the limitations of translated scales was developed. Design/Methodology/Approach: The study was conducted as a scale development study within a survey research design. The scale's items were developed based on DSM-5 criteria and an extensive literature review. The sample consisted of 644 students, identified by their teachers, from 120 schools across Türkiye's seven geographical regions. The psychometric properties of the scale were evaluated using Exploratory Factor Analysis (EFA) and Confirmatory Factor Analysis (CFA), along with internal consistency (Cronbach's Alpha) and test-retest reliability analyses. Findings: The EFA results revealed a three-factor structure (Number Sense, Calculation, and Mathematical Reasoning) that explained 68.5% of the total variance. The CFA confirmed this structure, with goodness-of-fit indices indicating an excellent model fit (e.g., CFI = .95, IFI = .95, RMSEA = .069, ?²/df = 2.41). The scale demonstrated high internal consistency (Cronbach's Alpha = .93) and strong test-retest reliability (r = .90). Highlights: The mathematics learning disability screening scale is a valid and reliable instrument developed for elementary and secondary school students. Its three-factor structure is consistent with modern theories of mathematics learning disabilities and its strong psychometric properties make it a valuable tool for educators and experts in early identification and intervention planning.
Açıklama
Anahtar Kelimeler
Validity, Reliability, Scale development, Mathematical learning disability
Kaynak
Kastamonu Eğitim Dergisi
WoS Q Değeri
Scopus Q Değeri
Cilt
33
Sayı
4
