Imagine you’re reading a book, and you notice that one character is cheerful and upbeat, while the second character is pessimistic and never has anything positive to say. If you wanted to share your ...

A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. When examining a collection of texts, researchers often want to get a sense of ...

Researchers have trained a machine learning model to identify people with post-traumatic stress disorder with 80 per cent accuracy by analyzing text data. The model could one day serve as an ...