Many library databases (including the Ebsco ones and JSTOR) will occasionally display "sentence case" in their titles, which carry into their generated APA citations - meaning they capitalize each word of the title of the article. APA, unlike other common citation styles, does NOT use sentence case. Here's an example from a library database:
This is how an APA citation *should* look, with only proper nouns, the initial word, and the initial word after a semicolon capitalized
This is not an "always" thing - you just have to look for it. Occasionally there will even be a title accidentally in all caps. If you download citations into Zotero, the incorrect capitalization will carry to there as well - you'll need to manually correct this mistake.