Final answer:
In APA style, it's true that in-text citations can appear either at the end of a sentence or at the beginning, depending on the sentence's grammatical flow.
Step-by-step explanation:
In APA style, in-text citations typically appear at the end of a phrase or sentence to indicate the source of the information, idea, or quotation. However, it is true that in-text citations can also be placed at the beginning of a sentence if it grammatically makes sense and flows well within the text. Appropriate integration of citations is crucial for maintaining the grammatical structure of the writing and for making the source of information clear to the reader. Readers should be able to easily follow the narrative or argument and understand the relevance and origins of the supporting evidence.