Assess learners' ability to analyze factors contributing to the spread of misinformation on social media and evaluate societal impacts. Scope includes psychological drivers (confirmation bias, motivated reasoning, emotional contagion); platform mechanics (algorithmic amplification, virality, filter bubbles, bot activity); information ecosystem features (source credibility, rumor typologies, cross-platform diffusion); and consequences for polarization, public health, democratic processes, and trust. Tasks: interpret case studies and data visualizations, critique mitigation strategies, and propose evidence-based interventions considering ethics and feasibility.