he basic interpersonal communication model presented in Figure $8\mathrm{.}1$ can still be applied to the impersonal nature of an online forum. The model consists of five elements: the sender$,$ message, channel, receiver, and feedback. In an online forum, the sender can be a person or a group of people, and the message can be in the form of text, images, videos, or links. The channel can be a website or a social media platform, and the receiver can be anyone who has access to the forum.

Explanation:

Feedback can be provided through comments, likes, or reactions. However, because of the impersonal nature of an online forum, some elements of the model may be more difficult to perceive, such as nonverbal cues or tone of voice.