What is required for in-text citations of a work with two authors in APA style?

In APA style, when citing a work that has two authors, it is essential to include the last names of both authors in the in-text citation. This is because giving credit to both individuals accurately reflects their contributions to the work being cited. The correct format involves listing the last names separated by an ampersand (&) if the citation is in parentheses, or by the word "and" when mentioned in the text. Additionally, the publication date must also be included to provide context regarding when the work was published.

Therefore, the requirement specifies that both authors' last names and the publication date be part of the in-text citation, ensuring that readers can easily identify the source and its contributors. This approach maintains the integrity of academic writing by accurately acknowledging the collaborative efforts involved in the research.