Early cognitive intervention using mediated learning for preschoolers with developmental delay: A randomized controlled trial.

Background: The use of mediated learning in cognitive training has been shown to be effective in enhancing students' cognitive development. Nonetheless, its effects on language development are less explored.

Aims: This study examined the effects of an early cognitive intervention (Think Bright program) in enhancing the cognitive and language development of Hong Kong preschoolers with developmental delay.