What is the fine-grained topic of the following text: With the study testing 166 participants successfully from the ages of 18 to 35, the research will need to be applied to a larger and more diverse audience before any discussion of launching the program can commence, according to the study’s co-authors, Robert R Morris, Stephen M Schueller and Rosalind W Picard. Only return the topic.
The research study involving 166 participants aged 18 to 35 conducted by Robert R Morris, Stephen M Schueller, and Rosalind W Picard.