(1) These markets were chosen by a method that assured an even distribution of
market sizes, but within any market size the particular market included was randomly
selected. Markets were ranked according to number of stations (See Table 3), and
then a starting point was chosen (a number between one and 15 was picked, at random).
From that starting point, every fifteenth market (in descending order of ranking) was
chosen. Where several stations held equal rank (for example, more than one market had
17 stations) the particular market chosen was picked at random (by using a random
number generator).

(2) The market rankings and station assignments to markets come from Table 3
and Appendix A.

(3) The years that stations began operation, which underlie this table, come from
Standard Rate & Data Service, Inc., Spot Radio Rates and Data, Vol. 61, No. 3,
March 1, 1979, Skokie, Illinois, Broadcasting Yearbook 1979, and F.C.C. license records.

Source:

Standard Rate and Data Service, Inc., Spot Radio Rates and Data, Vol. 61, No. 3, March 1, 1979, "Radio Stations Regularly Scheduling Negro/black Programs," p.19. Methods and Sources used by SRDS: Employing a rotation system, questionnaires are mailed frequently to insure data reported is current and accurate. Definition as to what constitutes Negro/black Programming is left to the discretion of the stations. Each station is advised that failure to return a completed form will mean deletion of the station from this tabulation as information is not carried forward. Stations not maintaining full monthly listings are not reported since it is not possible to maintain current information.

1 Market definitions from Table 3 and Appendix A.

2 The 280 stations reporting part-time Black programming averaged 19.8 hours per week of Black programming.