Nurcan ALPÜRAN KOCABIYIK, Kadriye Şerife UĞUR
Kocaeli Üniversitesi Sağlık Bilimleri Dergisi - 2026;12(3):292-298
Objective: This study examined the association between intelligence quotient (IQ) scores and receptive, expressive, semantic, and grammatical language performance in 5-6-year-old children. Methods: This cross-sectional study prospectively enrolled and assessed 50 children from four cities in Türkiye. IQ was assessed using the Stanford-Binet Intelligence Scale, and language skills were evaluated using the Turkish Early Language Development Test (TEDİL). IQ was treated as a continuous variable, and associations between IQ and language outcomes were examined using Spearman rank correlations. Exploratory sex comparisons used the Mann-Whitney U test. Results: The sample included 25 girls and 25 boys; 37 children were aged 5 years and 13 were aged 6 years. Mean IQ was 110.38+/-12.72. IQ scores were positively correlated with receptive language (p=0.643, p<0.001), expressive language (p=0.764, p<0.001), and total language (p=0.766, p<0.001). Positive correlations were also observed for all four language subdomains (p=0.569-0.726; all p<0.001). Conclusion: Higher IQ scores were associated with stronger receptive, expressive, semantic, and grammatical language performance in this study.
