As a marketer who is running an advertising campaign, one of the key tasks that you are likely to have to tackle is that of telling whether or not any given advertisement (in the campaign) has been effective. It turns out that there are two dependable ways in which you can tell whether or not an advertisement has been effective.
The first way in which you can tell whether an advertisement has been effective is by carrying out a survey, where you just seek to establish from people whether they have noticed the advertisement in question. If an advertisement is not even being noticed, then you have a reason to doubt its effectiveness.
The second way in which you can tell whether an advertisement has been effective is by checking on your sales and revenues, to establish whether they have gone up as a consequence of the advertisement. This is actually the ultimate way to tell whether or not an advertisement has been effective: keeping in mind that, when all is said and done, people only invest in adverts in a bid to increase their sales and their revenues.
Should you find that, indeed, the sales revenues have gone up as a result of the ad, you can then take the analysis further: and try to understand whether the increase in revenues is commensurate with the investment made in the advertisements. This is all about looking at the business fundamentals: where you have to ensure that every investment brings about a sizeable return. And as many of the successful businesspeople who make it to the Forbes list will tell you, it is only by consistently and unwaveringly looking at business fundamentals that you can eventually succeed in trade.