Simply ask the person to answer online surveys to estimate the time they spent online than watching television can lead to large errors. One reason is that researchers have the experience to know that consumers have difficulty recalling exactly how they spend their time.When checking the media involvement based on the background plate passive behavior observations, such as those provided by Nielsen for television and comScore earn online. Such a background plate not subjected to the behavior online survey bias mentioned before, and they are less likely to error-prone recalled. Moreover, they are often seen as providing the most accurate measures with the participation of television and the Internet, the corresponding
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