Translating research into practice : a cross-sectional study using the Early Development Instrument to assess early years interventions in local level public health practice

Geddes, Rosemary and Woolfson, Lisa Marks and McNicol, Stephanie and Booth, Josephine N and Wray, Stephen and Hardie, Samantha and Doi, Larry and Frank, John (2014) Translating research into practice : a cross-sectional study using the Early Development Instrument to assess early years interventions in local level public health practice. The Lancet, 384 (Supple).

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    Abstract

    Evidence that early years interventions can reduce inequalities has led to Scottish Government policy recommending that local areas implement initiatives to improve early child development. How best to measure the effects of these interventions is, however, unclear. We conducted a pilot study of the first UK use of the teacher-administered Early Development Instrument (EDI), an internationally validated measure of global child development now used at school entry in all children in Australia and most of Canada. The study, conducted in the primary school setting in 2011–12, was cross-sectional in design and used qualitative and quantitative methods. During phase 1 the EDI was adapted for the Scottish context. 14 teachers assessed 154 pupils, using the instrument. Focus groups and semi-structured questionnaires were used to gather feedback from teacher participants on the instrument and the process. Phase 2 collected and analysed data from 1090 pupil participants, comprising 98% of eligible school-entrants in East Lothian local authority, assessed by 68 teachers. The 104-item EDI questionnaire has five domains of child development: physical, social, emotional, language and cognitive, and communication and general knowledge. Data were analysed with SPSS (version 17.0). The psychometric properties of the EDI were assessed with Cronbach's α. Mean scores in the domains were linked to levels of deprivation and results were mapped using Geographic Information System. Phase 3 monitored subsequent dissemination and use of EDI results. The study was approved by the School of Psychological Sciences and Health Ethics Committee of the University of Strathclyde, Glasgow, UK; the Education Authority of the relevant school district; and the Chief Scientist Office of the Scottish Government. In line with EDI data collection in other countries, opt-out consent was used for parents of pupils. All teachers provided written, informed consent. Children in the most deprived quintile were 2·8 times more likely than the most affluent to be developmentally vulnerable in one or more domains; however, substantial developmental vulnerability was found across all five quintiles, not only in the most deprived. The EDI was found to be user friendly and acceptable to teachers, demonstrating high levels of internal reliability. Dissemination of results created a forum for multidisciplinary discussion and raised awareness about the importance of early child development, domains of development, and how inequalities can be tackled, leading to new initiatives based on EDI data. The EDI is a robust instrument able to highlight developmental differences in children between socioeconomic groups and small-scale geographical areas. Its simplicity and usability lend themselves easily to community-wide implementation.