How should authors capitalize titles in APA citations?

In APA style, the correct approach for capitalizing titles in citations is to capitalize only the first word of the title, the first word of the subtitle, and any proper nouns. This means that while the initial word of the title and subtitle is highlighted, all other words are left in lowercase unless they are proper nouns, such as names of people or places. This capitalization style is part of the sentence case formatting required by APA, which differs from styles that may capitalized each significant word in a title. Understanding this distinction is crucial for accurately adhering to APA formatting guidelines when preparing manuscripts or citations.