TY - JOUR N1 - This version is the author accepted manuscript. For information on re-use, please refer to the publisher?s terms and conditions. KW - Social Sciences KW - Science & Technology KW - Life Sciences & Biomedicine KW - Psychology KW - Developmental KW - Psychiatry KW - Psychology KW - Relative age KW - language impairment KW - behaviour problems KW - academic achievement KW - Relative Age KW - Impairments KW - Disorder KW - Birth KW - Childhood KW - Diagnosis KW - Season TI - Younger children experience lower levels of language competence and academic progress in the first year of school: evidence from a population study SN - 1469-7610 AV - public IS - 1 EP - 73 VL - 57 SP - 65 A1 - Norbury, CF A1 - Gooch, D A1 - Baird, G A1 - Charman, T A1 - Simonoff, E A1 - Pickles, A PB - WILEY JF - Journal of Child Psychology and Psychiatry Y1 - 2016/01// N2 - Background The youngest children in an academic year are reported to be educationally disadvantaged and overrepresented in referrals to clinical services. In this study we investigate for the first time whether these disadvantages are indicative of a mismatch between language competence at school entry and the academic demands of the classroom. Methods We recruited a population sample of 7,267 children aged 4 years 9 months to 5 years 10 months attending state?maintained reception classrooms in Surrey, England. Teacher ratings on the Children's Communication Checklist?Short (CCC?S), a measure of language competence, the Strengths and Difficulties Questionnaire?Total Difficulties Score (SDQ), a measure of behavioural problems, and the Early Years Foundation Stage Profile (EYFSP), a measure of academic attainment, were obtained at the end of the reception year. Results The youngest children were rated by teachers as having more language deficits, behaviour problems, and poorer academic progress at the end of the school year. Language deficits were highly associated with behaviour problems; adjusted odds ratio 8.70, 95% CI [7.25?10.45]. Only 4.8% of children with teacher?rated language deficits and 1.3% of those with co?occurring language and behaviour difficulties obtained a ?Good Level of Development? on the EYFSP. While age predicted unique variance in academic attainment (1%), language competence was the largest associate of academic achievement (19%). Conclusion The youngest children starting school have relatively immature language and behaviour skills and many are not yet ready to meet the academic and social demands of the classroom. At a population level, developing oral language skills and/or ensuring academic targets reflect developmental capacity could substantially reduce the numbers of children requiring specialist clinical services in later years. UR - https://doi.org/10.1111/jcpp.12431 ID - discovery10048032 ER -