a measure of audience size, in which reach x average frequency = gross rating points; the total duplicated audience that is exposed to all the vehicles in a particular media schedule, typically expressed for a given time period within the schedule, such as a four-week period. One rating point equals one percent of the audience. An expression of the total advertising weight in an advertising schedule. The sum of ratings delivered by all media vehicles in an advertising schedule. Example: 20 commercials each with a 12 rating yield a total of 240 GRPs. See reach, average frequency, advertising weight, gross impressions, message weight, and target rating points (TRPs).

A term used in buying time for TV ads. If an ad is shown twice, and seen by 10% of people the first time and 8% the second time, it achieves 18 GRPs. A more specific version of GRPs is TARPS.

One GRP is equal to one percent of the population. GRPs are packaged in units of 50 or 100 and measure the duplicated audience reached by a poster allotment. GRPs = Daily effective circulation divided by market population. An impression occurs when a person is exposed to an advertising message.

Gross Rating Points ( GRP) measure the total volume of delivery of your message to your target audience. It is equal to the percent Reach to your target audience times the Frequency of exposure. To arrive at your total Gross Rating Points, add the individual ratings for each media vehicle you are using. You may also get GRP by dividing your gross Impressions by the population base and multiplying the answer by 100.

The sum of the ratings to each message on a schedule, this includes duplication.

The sum of ratings achieved by a specific media vehicle or schedule. Example: a newspaper produces a 1x rating of 50; three ads in the same newspaper provide 150 GRPs. GRPs = reach x frequency.

(GRP) - percentage of the total population reached by a commercial or programming; usually radio. For example, 300 GRP's means that everyone within the region of a marketing campaign was reached three times.

The sum of all rating points delivered over the course of a media plan. Represents the percent of the population who will be exposed to the media. Each rating point is equal to one percent of the population.

The sum of all ratings delivered by a given list of media vehicles. Although synonymous with TRPs, GRPs generally refer to a "household" base. In out-of-home media, GRPs are synonymous with a Showing.

The sum of all ratings delivered by a given schedule, against a pre-determined target group. GRPs = reach x frequency.

The total number impressions delivered by a media schedule, expressed as a percentage of the population. GRPs for Outdoor generally refer to daily circulation generated by the entire showing.

GRPs for outdoor refer to daily circulation, with one rating point representing a circulation equal to 1% of the market population.

The sum of all rating points achieved for a particular commercial schedule.

Reach times average frequency. This is a measure of the advertising weight delivered by a vehicle or vehicles within a given time period.

The sum of all ratings for all programs in a schedule. The key distinction between a "rating" and "GRPs" is one of audience duplication. A program rating implies an audience level with no duplication; GRPs represent some level of audience duplication, hence the term "gross".

In broadcast, the product of percentage of audience for all announcements in an advertising schedule (e.g., 20 announcements, each rating 10, would equal 200 GRPs). May be based on households or, preferably, a specific demographic target audience (e.g., men, age 18 to 24).

A measure of the overall advertising exposure of consumer households.