◆品牌诚信度专项研究技术说明为评估CCTV3.15相关宣传节目的广告投放效果,昌荣传播分别在北京、武汉、绵阳三个不同级别的代表性城市,以计算机辅助电话访问(CATI)的形式,对当地居民进行了随机调查。此次调查分为前测和后测,前测是指在央视3.15晚会前所做的调研,具体执行时间是 ◆ Brand Integrity Specialized Study Technical Description To evaluate the effect of advertising on CCTV3.15 related publicity programs, Changrong Broadcasting Co., Ltd., in three representative cities of different levels in Beijing, Wuhan and Mianyang respectively, took the form of computer assisted telephone interview (CATI) , Conducted a random survey of local residents. The survey is divided into pre-test and post-test, pre-test refers to the survey conducted before the CCTV 3.15 evening, the specific implementation time is