Abstract
Background/Aims: To design and standardize the Preschool Language Test (Teste de Linguagem-Avaliação da Linguagem Pré-Escolar, TL-ALPE) which assesses European Portuguese (EP)-speaking children's receptive and expressive language abilities. Methods: To standardize TL-ALPE, data was collected on 817 EP-speaking children aged 3 years and 0 months to 5 years and 12 months. The standardization, validity and reliability procedures of TL-ALPE followed the standard recommendations. Results: TL-ALPE presented a strong cohesion (internal consistency, >80%) and strong inter- and intrajudge reliability (>90%). The content validity was verified by the description of instrument domain and the items. The construct validity of TL-ALPE was confirmed by the proportional increase in mean score values with age for both receptive and expressive abilities. The results of concurrent validity revealed strong correlations between TL-ALPE and other EP preschool language tests for expressive and total language scores. Conclusion: TL-ALPE is a valid and reliable instrument to assess language skills of EP-speaking preschool children. © 2014 S. Karger AG, Basel
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