|
Broad |
Restricted |
Narrowed |
Research question |
|---|---|---|---|
| Education | Charter schools | Charter schools and online education | What educational benefits do online charter schools offer? |
|
Smoking |
E-cigarettes |
Secondhand exposure to e-cigarettes |
What are the negative effects of allowing e-cigarette use in public places? |
| Writing | Writing in librarianship |
Answering e-mail reference questions |
What writing skills are important for librarians to provide effective email reference service? |