The Crossley ratings (or Crossleys) were an audience measurement system created to determine the audience size of radio broadcasts beginning in 1930. Developed by Archibald Crossley, the ratings were generated using information collected by telephone surveys to random homes.
In 1930, Crossley spearheaded the formation of the Cooperative Analysis of Broadcasting (CAB). [1] The first national ratings service, CAB was supported by subscription and was at first available only to advertisers. [2] [3] Crossley's method of data collection essentially consisted of calling random households in selected cities and asking the respondent to recall what radio programs had been listened to at an earlier point: the previous day in Crossley's first surveys, [4] later modified to a few hours earlier. [3] The survey also divided the day into four listening periods (later known as dayparts), thus uncovering the fact that most radio listening at the time occurred in the evenings. In the industry, the method was known as "telephone recall" and the reports were called the "Crossley ratings" [3] or simply the "Crossleys". [2] The survey is alluded to during Orson Welles' opening narration for his famous 1938 radio dramatization of The War of the Worlds : "On this particular evening, October 30th, the Crossley service estimated that thirty-two million people were listening in on radios." [5]
In the mid-1930s a competing telephone survey method was developed, generally believed to be an improvement on the Crossley method. [4] This method, described as "telephone coincidental", asked respondents what was being listened to at that moment. It was employed by C.E. Hooper, and the results became known as "Hooperatings". Although CAB eventually adopted the coincidental method, Hooperatings soon surpassed Crossley ratings in industry importance and by 1946 CAB was dissolved. [4] [6]
Observational error is the difference between a measured value of a quantity and its unknown true value. Such errors are inherent in the measurement process; for example lengths measured with a ruler calibrated in whole centimeters will have a measurement error of several millimeters. The error or uncertainty of a measurement can be estimated, and is specified with the measurement as, for example, 32.3 ± 0.5 cm.
Questionnaire construction refers to the design of a questionnaire to gather statistically useful information about a given topic. When properly constructed and responsibly administered, questionnaires can provide valuable data about any given subject.
A rating is an evaluation or assessment of something, in terms of quality, quantity, or some combination of both.
Nielsen Audio is a consumer research company in the United States that collects listener data on radio broadcasting audiences. It was founded as the American Research Bureau by Jim Seiler in 1949 and became national by merging with Los Angeles–based Coffin, Cooper, and Clay in the early 1950s. The company's initial business was the collection of broadcast television ratings.
Radio broadcasting began in New Zealand in 1922, and is now dominated by almost thirty radio networks and station groups. The Government has dominated broadcasting since 1925, but through privatisation and deregulation has allowed commercial talk and music stations to reach large audiences. New Zealand also has several radio stations serving Māori tribes, Pasifika communities, ethnic minorities, evangelical Christians and special interests.
A questionnaire is a research instrument that consists of a set of questions for the purpose of gathering information from respondents through survey or statistical study. A research questionnaire is typically a mix of close-ended questions and open-ended questions. Open-ended, long-term questions offer the respondent the ability to elaborate on their thoughts. The Research questionnaire was developed by the Statistical Society of London in 1838.
A people meter is an audience measurement tool used to measure the viewing habits of TV and cable audiences.
A media market, broadcast market, media region, designated market area (DMA), television market area, or simply market is a region where the population can receive the same (or similar) television and radio station offerings, and may also include other types of media such as newspapers and internet content. They can coincide with or overlap with one or more metropolitan areas, though rural regions with few significant population centers can also be designated as markets. Conversely, very large metropolitan areas can sometimes be subdivided into multiple segments. Market regions may overlap, meaning that people residing on the edge of one media market may be able to receive content from other nearby markets. They are widely used in audience measurements, which are compiled in the United States by Nielsen Media Research. Nielsen has measured both television and radio audiences since its acquisition of Arbitron, which was completed in September 2013.
Audience measurement calculates how many people are in an audience, usually in relation to radio listenership and television viewership, but also in relation to newspaper and magazine readership and, increasingly, web traffic. The term is sometimes used with regard to practices that help broadcasters and advertisers determine who is listening, rather than how many people are listening. In some parts of the world, the resulting numbers are referred to as audience share; in other places, the broader term market share is used. This broader meaning is also known as audience research. Measurements are broken down by media market, which corresponds to large and small metropolitan areas.
Radio Joint Audience Research Limited was established in 1992 to operate a single audience measurement system for the radio industry in the United Kingdom. RAJAR is jointly owned by the BBC and Radiocentre. RAJAR's predecessor was called Joint Industry Committee on Radio Audience Research. Prior to this, the BBC and Radiocentre's predecessor CRCA carried out their own measurements independently of each other.
In the United States, commercial radio stations make most of their revenue by selling airtime to be used for running radio advertisements. These advertisements are the result of a business or a service providing a valuable consideration, usually money, in exchange for the station airing their commercial or mentioning them on air. The most common advertisements are "spot commercials", which normally last for no more than one minute, although extended versions, commonly running for up to 45, 60 or more minutes, are termed "informercials" because they delve deeper into detailed information on and stories about commercial product or service offerings.
The C. E. Hooper Company was an American company which measured radio and television ratings during the Golden Age of Radio. Founded in 1934 by Claude E. Hooper (1898–1954), the company provided information on the most popular radio shows of the era.
The Portable People Meter (PPM), also known as the Nielsen Meter, is a system developed by Arbitron to measure how many people are exposed to individual radio stations and television stations. This also includes cable television. The PPM is worn like a pager and detects hidden audio tones within a station or network's audio stream, logging each time it finds a signal.
The Audience Appreciation Index (AI) is an indicator measured from 0 to 100 of the public's appreciation for a television or radio programme, or broadcast service, in the United Kingdom.
Nielsen Media Research (NMR) is an American firm that measures media audiences, including television, radio, theatre, films, and newspapers. Headquartered in New York City, it is best known for the Nielsen ratings, an audience measurement system of television viewership that for years has been the deciding factor in canceling or renewing television shows by television networks. As of August 2024, it is the primary part of Nielsen Holdings.
Single-source data is the measurement of TV and/or other mass media's advertising exposure and purchase behavior, over time for the same individual or household. This measurement is gauged through the collection of data components supplied by one or more parties overlapped through a single integrated system of data collection matched to the person or household level. How these data are stored is known as a single-source database.
Scarborough is a United States–based market research company that measures shopping patterns, media usage across platforms, and lifestyle trends of adults. Specializing in local and national consumer research, Scarborough measures over 100 local markets in the United States. Scarborough is headquartered in New York City.
The Media Technology Monitor (MTM) is research product designed to monitor Canadians' use and adoption of new and existing technologies. The first MTM 18+ questionnaire, which focuses on Canadian adults, was distributed in 2005 and now consists of two annual telephone and web surveys conducted once during spring and fall each year. MTM 18+ surveys Canadians from all Provinces and Territories of Canada.
The Coalition for Innovative Media Measurement (CIMM) is a trade group founded in 2009 by television content providers, media agencies and advertisers to explore ways to measure audiences across media in the United States.