1. The document discusses several audience theories: effects theory, which argues media has a profound influence on passive audiences; two-step theory, which proposes opinion leaders influence others through celebrity endorsements; uses and gratifications, where active audiences select media to fulfill needs; and encoding/decoding, in which audiences can interpret encoded media texts in standard or oppositional ways depending on their perspective.
2. Effects theory suggests media can "inject" ideas into passive audiences and influence behaviors, while two-step theory argues opinion leaders and influencers shape how others respond to media messages.
3. Uses and gratifications and encoding/decoding posit more active audiences who selectively engage with media to meet personal needs or decode messages in standard