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- Vol 6 RE: Chapter 11
diffusion of innovationsinnovation adoptioncommunication networksopinion leadershipimplementation supportinnovation attributessocial systemseducational changeBook Evidence summaryAt a glance
Rogers synthesizes research on how new ideas, practices, and technologies spread through social systems. Diffusion is defined through four elements: an innovation, communication channels, time, and a social system.
Key ideas
Adoption typically moves through knowledge, persuasion, decision, implementation, and confirmation, although rejection and reinvention remain possible. Perceived relative advantage, compatibility, complexity, trialability, and observability help explain differences in adoption rates. Rogers distinguishes innovators, early adopters, early majority, late majority, and laggards while warning against treating these categories as fixed personal deficiencies. Interpersonal networks, opinion leaders, change agents, and the structure of communities shape whose information is trusted.
Why it matters
The fifth edition also examines consequences, equity, decentralized diffusion, and the pro-innovation bias of research. For education, the framework clarifies why a promising practice rarely spreads through evidence alone: local meaning, peer modelling, implementation support, and opportunities to adapt it matter.
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Edition abbreviations
- TE
- Teacher Edition
- PE
- Practice Edition
- RE
- Research Edition
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