The earliest type of communication model, known as interaction communication model, functions only in one direction.

Wrong.

Explanation:

The affirmation "The earliest type of communication model, known as interaction communication model, functions only in one direction" is incorrect because that definition applies to the linear communication model, not the interaction one. The linear communication model was the earliest type. As the name suggests, it flows as a line, in one direction - - source - -> message - -> channel - -> receiver. On the other hand, the interaction communication model includes noise and feedback. It shows that communication does not work as a one way street.