In psychology, the concept of 'cognitive dissonance' refers to the mental discomfort experienced when a person holds two or more contradictory beliefs, ideas, or values, or when acting in a way that contradicts their beliefs. This discomfort often leads individuals to rationalize their behavior or change their beliefs to reduce the inconsistency. Cognitive dissonance is a powerful motivator for attitude change, as people strive for internal consistency.
🎧 การบรรยาย
Professor: Let me give you an example from a study. Participants were asked to perform a boring task, like turning knobs for an hour. Afterward, they were paid either $1 or $20 to tell the next participant that the task was enjoyable. Those paid $1 experienced high dissonance because they had lied for little reward. To reduce the discomfort, they convinced themselves that the task was actually interesting. In contrast, those paid $20 had a clear external justification for their lie, so they felt little dissonance and continued to view the task as boring. This shows how people change their attitudes to align with their behavior when external reasons are weak.
❓ คำถาม Using the example from the lecture, explain the concept of cognitive dissonance.
📊 เกณฑ์การให้คะแนน TOEFL Speaking Task 3
Delivery: Fluency, pronunciation, intonation
Language Use: Grammar, vocabulary, sentence variety
Topic Development: Accurately explain the reading concept and restate the lecture examples
Scored 0-30 based on holistic scoring (original 0-4, scaled to 30). 30s preparation, 60s response.
💡 เคล็ดลับ
Note the core concept definition from the reading (usually 1-2 sentences)
Record 1-2 specific examples the professor uses in the lecture
Start with the concept definition, then explain with lecture examples
Use template phrases: "The reading defines... The professor illustrates this by..."
Keep within 60s; ensure clarity and fluency
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⚠️ AI 自动评分基于托福官方口语三大维度（Delivery / Language Use / Topic Development）标准开发，结果仅供练习参考。
