Complex sentence: It is suggested that attitudes formed under high elaboration, the central route, are stronger than those formed under low elaboration, making this level of persuasion stable over time and less susceptible to decay or any type of counter-persuasion.
Split into simpler sentences: It is suggested that attitudes formed under high elaboration, the central route, are stronger than those formed under low elaboration. This means that this level of persuasion is stable over time and is less susceptible to decay or any type of counter-persuasion.