All participants were assessed with the following tests of cognitive development: the vocabulary and matrix reasoning
subtests of the Wechsler Intelligence Scale for Children-IV (WISC-IV; Wechsler, 2005) or the Wechsler Preschool and Primary
Scale of Intelligence-III (WPPSI-III; Wechsler, 2009) (depending on the participant’s age) and the forward digit-span and