In treatment studies, there may also be feedback on therapy quality from experts listening to recordings of sessions.
What if a random sample of citizens had a chance to learn from experts, listen to proposals, talk to each other and engage with politicians?
The experts listen for up to 400 different characteristics in every song, from musical genre to the presence of a particular instrument.
"The administration had two basic choices on how to develop a national energy policy: it could close its doors and shut its ears and turn off its phones and write a national energy policy in isolation, or it could consult with experts, listen to the public and incorporate the good ideas and reject the bad ideas.
Responding to the review on Wednesday, Dame Clare Tickell, chief executive at Action for Children, said it was vital experts listen to children rather than just adults "Children at risk of dying at the hands of their parents are crying out for help but they aren't being heard.
"If you don't believe the experts, listen to the shop floor," she cried, hammering home again and again that she was speaking for the workers, for people who couldn't afford to take a risk on Brexit; people she's been speaking for all her life.
At the conference, a panel of venture capital and government-funding experts listened to the pitches, asked questions, and named Allergy-Sure the winner.
The "Communicating with children" resource pack, launched recently in New York, presents principles and guidelines that aim to help experts listen to, discuss with and learn from children, while planning their own communication for development strategies.
Even though I was bullied as a child and recently co-wrote the free booklet, A Parents Guide to Cyberbullying I'm certainly no expert, but after listening to expert after expert, I have learned a bit about the nature of bullying and what can be done to prevent it and deal with it once it occurs.
