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Quick Revision Table
| Concept | Key Fact | RPSC Relevance |
|---|---|---|
| Schramm's Definition | "Establishing commonness of thought" (1954) | Core definition |
| Aristotle's Model | Ethos-Pathos-Logos; oldest model (c. 350 BCE) | Rhetorical model |
| Lasswell (1948) | Who-What-Channel-Whom-Effect; mass media | Linear model |
| Shannon-Weaver (1949) | 6 components + Noise; entropy; no feedback | Expected 5-mark Q |
| Berlo SMCR (1960) | Source-Message-Channel-Receiver; 5 factors each | Theory comparison |
| Schramm Interactive (1954) | Feedback; Field of Experience; circular | Best model for admin |
| Wheel Network | Fastest; clear leader; low periphery satisfaction | Network structures |
| All-Channel Network | Slowest; highest satisfaction; best for creativity | Network structures |
| Grapevine | Keith Davis (1953); 75–95% accurate; cluster chain most common | Informal network |
| Mehrabian (1971) | 7-38-55: 7% verbal, 38% vocal, 55% non-verbal | Non-verbal importance |
| Proxemics | Edward Hall (1966); 4 personal space zones | Cultural barriers |
| 5 Barrier Types | Physical, Semantic, Psychological, Organisational, Cultural | Barriers 5-mark |
| Gottman's 4 Horsemen | Criticism, Contempt, Defensiveness, Stonewalling (1994) | Destructive communication |
| Contempt | Most destructive of 4 Horsemen; signals worthlessness | Key exam point |
| Active Listening | Rogers & Farson (1957); reduces conflict 40% | Overcoming barriers |
| Digital Divide | Limits e-governance reach; tribal areas most affected | E-communication challenge |