Research Article

INTELLIGENCE QUOTIENT (IQ) AND RECEPTIVE-EXPRESSIVE LANGUAGE SKILLS IN 5–6-YEAR-OLD CHILDREN

Volume: 12 Number: 3 September 30, 2026
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INTELLIGENCE QUOTIENT (IQ) AND RECEPTIVE-EXPRESSIVE LANGUAGE SKILLS IN 5–6-YEAR-OLD CHILDREN

Abstract

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 (ρ=0.643, p<0.001), expressive language (ρ=0.764, p<0.001), and total language (ρ=0.766, p<0.001). Positive correlations were also observed for all four language subdomains (ρ=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.

Keywords

Ethical Statement

Turgut Özal University Faculty of Medicine Ethics Evaluation Committee, decision date 28 May 2015, decision number 2015/05, document number 99950669/137.

References

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Details

Primary Language

English

Subjects

Allied Health and Rehabilitation Science (Other)

Journal Section

Research Article

Publication Date

September 30, 2026

Submission Date

June 28, 2026

Acceptance Date

September 21, 2026

Published in Issue

Year 2026 Volume: 12 Number: 3

APA
Alpüran Kocabıyık, N., & Boynukalın, K. (2026). INTELLIGENCE QUOTIENT (IQ) AND RECEPTIVE-EXPRESSIVE LANGUAGE SKILLS IN 5–6-YEAR-OLD CHILDREN. Kocaeli Üniversitesi Sağlık Bilimleri Dergisi, 12(3), 292-298. https://doi.org/10.30934/kusbed.1980784
AMA
1.Alpüran Kocabıyık N, Boynukalın K. INTELLIGENCE QUOTIENT (IQ) AND RECEPTIVE-EXPRESSIVE LANGUAGE SKILLS IN 5–6-YEAR-OLD CHILDREN. KOU Sag Bil Derg. 2026;12(3):292-298. doi:10.30934/kusbed.1980784
Chicago
Alpüran Kocabıyık, Nurcan, and Kadriye Boynukalın. 2026. “INTELLIGENCE QUOTIENT (IQ) AND RECEPTIVE-EXPRESSIVE LANGUAGE SKILLS IN 5–6-YEAR-OLD CHILDREN”. Kocaeli Üniversitesi Sağlık Bilimleri Dergisi 12 (3): 292-98. https://doi.org/10.30934/kusbed.1980784.
EndNote
Alpüran Kocabıyık N, Boynukalın K (September 1, 2026) INTELLIGENCE QUOTIENT (IQ) AND RECEPTIVE-EXPRESSIVE LANGUAGE SKILLS IN 5–6-YEAR-OLD CHILDREN. Kocaeli Üniversitesi Sağlık Bilimleri Dergisi 12 3 292–298.
IEEE
[1]N. Alpüran Kocabıyık and K. Boynukalın, “INTELLIGENCE QUOTIENT (IQ) AND RECEPTIVE-EXPRESSIVE LANGUAGE SKILLS IN 5–6-YEAR-OLD CHILDREN”, KOU Sag Bil Derg, vol. 12, no. 3, pp. 292–298, Sept. 2026, doi: 10.30934/kusbed.1980784.
ISNAD
Alpüran Kocabıyık, Nurcan - Boynukalın, Kadriye. “INTELLIGENCE QUOTIENT (IQ) AND RECEPTIVE-EXPRESSIVE LANGUAGE SKILLS IN 5–6-YEAR-OLD CHILDREN”. Kocaeli Üniversitesi Sağlık Bilimleri Dergisi 12/3 (September 1, 2026): 292-298. https://doi.org/10.30934/kusbed.1980784.
JAMA
1.Alpüran Kocabıyık N, Boynukalın K. INTELLIGENCE QUOTIENT (IQ) AND RECEPTIVE-EXPRESSIVE LANGUAGE SKILLS IN 5–6-YEAR-OLD CHILDREN. KOU Sag Bil Derg. 2026;12:292–298.
MLA
Alpüran Kocabıyık, Nurcan, and Kadriye Boynukalın. “INTELLIGENCE QUOTIENT (IQ) AND RECEPTIVE-EXPRESSIVE LANGUAGE SKILLS IN 5–6-YEAR-OLD CHILDREN”. Kocaeli Üniversitesi Sağlık Bilimleri Dergisi, vol. 12, no. 3, Sept. 2026, pp. 292-8, doi:10.30934/kusbed.1980784.
Vancouver
1.Nurcan Alpüran Kocabıyık, Kadriye Boynukalın. INTELLIGENCE QUOTIENT (IQ) AND RECEPTIVE-EXPRESSIVE LANGUAGE SKILLS IN 5–6-YEAR-OLD CHILDREN. KOU Sag Bil Derg. 2026 Sep. 1;12(3):292-8. doi:10.30934/kusbed.1980784