Bilinguals averaged higher scores in cognitive performance on tests and "better attention focus, distraction resistance, decision-making, judgement and responsiveness to feedback."
"The discrepancies between the two accounts which have been identified here are genuine, farreaching, and not merely apparent discrepancies. [...] it is clear that a definitive judgement on the character and extent of Genie's linguistic development still cannot be given."
Article provides helpful reminders re: active listening; see article for specific how-tos. The seven tips:
1. Paraphrase
2. Ask questions
3. Express empathy
4. Use engaged body language
5. Avoid judgement
6. Avoid giving advice
7. Take turns