The prestige press is mostly magazines and newspapers. Prestige press doesn't overlap peer reviewed sources, or at least not much. Ways to narrow down your results:
Most databases have a way to limit by type of source. Here is an image of the option in NexisUni, and it makes sense to just look at the Newspapers to avoid types of sources you've been asked to avoid.
Another tool you've been asked to use to get closer to the truth is Ad Fontes Media's Interactive Media Bias Chart. WIU Libraries has a subscription to it during the 2024-25 school year. About Ad Fontes:
"The information landscape is vast and noisy. We’re here to help you sort through it by rating sources for reliability and bias. Obviously, people have lots of different thoughts about how reliable and biased various news sources are, so we do everything we can to earn your trust."
Before using the Interactive Media Bias Chart, first find an article. For recommendations on how to find one, see the "Where to Search for Prestige Press" box on this page. Next, determine the source that published the article. The title of that source is what you'll type into the search box on the IMBC page to check its biases.
Here's an example. You are searching for sources on the question of Barack Obama's country of birth and find one with the following citation information:
You need to identify the title of the source where Bromwich's article was published: Nation Now take that title and plug it into the IBMC search. It's a little tricky because IBMC lists it under The Nation so you have to scroll down the list to find it. Once you do, the bias chart will appear at the right.
In any of the newspaper databases, you have the option to avoid articles from certain sections. Here's a sample search from Access World News. In the third line of my search, I'm telling the database that I do NOT want to see results from a section called Editorial or Opinion or Commentary (newspapers have different names for this section).
In Nexis Uni, after you populate the "Headline and Lead Sections" box with your search word(s), type "editorial or commentary or opinion" into the "Section" box. Finally, add the word "NOT" to your search string at the top of the page so that content from those sections is excluded.