Definitions for "Effective frequency"
The average number of opportunities-to-see the advertising message which is considered to achieve the media objective set for the advertising campaign.
This is the number of advertising exposures deemed necessary in your marketing plan objectives to generate the required response from your target market.
the number (or range) of exposures or repetitions needed for advertising to be effective or have impact in communicating to the individuals in a target audience, such as to increase awareness, to change attitude, to generate action, or to stimulate a particular response; i.e., how many exposures are required for the message to achieve the advertiser's objectives, register with, or “get through” to the audience, or to have a minimum level of impact. See frequency.