Final answer:
The concept that explains how the placement of information in a message influences recall is known as the2) serial position effect, which includes the primacy and recency aspects affecting persuasion.
Step-by-step explanation:
The placement of information at the beginning, middle, or end of a message affects how well that information is remembered. This is a fundamental concept known as the serial position effect. Features of the message affecting persuasion, as found in research by Petty & Cacioppo (1986) and Miller & Campbell (1959), include the subtlety and timing of the message, as well as whether one or both sides of an argument are presented. The serial position effect is highlighted by the observation that arguments presented first are more influential when messages are given back-to-back. However, if there is a delay before the audience needs to make a decision, the last message becomes more persuasive, demonstrating the recency aspect of the effect.