主要的研究方法有文献资料法、问卷调查法、实验对比法、数理统计法、对比分析法等。

The main research method includes data method, questionnaire experiment comparing method, statistical method, and analysing method, etc.

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此外，设计者们还将每个研究对象的每种促销定价实验，与对照组实验进行对比，得出其额外的损失，然后再根据平均额外损失为五种促销定价方式排名，最终确定了最忽悠人/框人的促销方式为“复合定价法”，然后依次是“限时定价法”、“钓饵定价法”﹑“贱卖定价法”和“复杂定价法”。

The average extra loss was then used to rank the five price frames. Shoppers were worst off under drip pricing, followed by time-limited offers, baiting, sales and complex pricing.

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与经典的LPC方法的对比实验验证了该法在合成语音质量方面的优越性。

Compared to classical LPC approach, the experiments prove the superiority of this approach in terms of speech quality.

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