This article defines dual-concept diversity as a two-dimensional construct that holds a central place of study in many fields, including communication. The authors present 12 measures of dual-concept diversity appearing in the literature and assess the differential sensitivity of these measures in capturing the two dimensions. After assessing each measure and eliminating measures that are redundant or computationally intractable, the article compares the remaining measures of diversity in a time series of 30 years of network radio programming. Graphic and statistical interrelationships are presented to facilitate comparison and choice between measures in future research.
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References
1.
Agresti, A., & Agresti, B. F. (1977). Statistical analysis of qualitative variation. In K. F. Schuessler (Ed.), Sociological methodology 1978 (pp. 204-237). San Francisco: Jossey-Bass.
2.
Albarran, A. B. (2002). Media economics (2nd ed.). Ames: Iowa State Press.
3.
Chaffee, S. H., & Wilson, D. G. (1977). Media-rich, media-poor: Two studies of diversity in agenda-holding. Journalism Quarterly, 54, 466-476.
4.
De Jong, A. S., & Bates, B. J. (1991). Channel diversity in cable television. Journal of Broadcasting & Electronic Media, 35(2), 159-166.
5.
Dimmick, J. R. (2002). Media competition and coexistence: The theory of the niche. Mahway, NJ: Lawrence Erlbaum.
6.
Dimmick, J. R., & McDonald, D. G. (2001). Network radio as oligopoly, 1926-1956: Rivalrous imitation and program diversity. Journal of Media Economics, 14(4), 197-212.
7.
Dimmick, J. R., & McDonald, D. G. (2002, May). Diversification as an element of media corporation structure: Measures and interpretation. Paper presented at the Fifth World Media Economics Conference, Turku, Finland.
8.
Dominick, J. R., & Pearce, M. C. (1976). Trends in network prime-time programming, 1953-74. Journal of Communication, 20, 70-80.
9.
Fager, E. W. (1972). Diversity—A sampling study. American Naturalist, 106, 293-310.
10.
Glasser, T. L. (1984). Competition and diversity among radio formats: Legal and structural issues. Journal of Broadcasting, 28, 127-142.
11.
Good, I. J. (1982). Diversity as a concept and its measurement: Comment. Journal of the American Statistical Association, 77, 561-563.
12.
Hall, M., & Tideman, N. (1967). Measures of concentration. Journal of the American Statistical Association, 62, 162-168.
13.
Junge, K. (1994). Diversity of ideas about diversity measurement. Scandinavian Journal of Psychology, 36, 16-26.
14.
Kaesler, R. L., Herricks, E. E., & Crossman, J. S. (1978). Use of indices of diversity and hierarchical diversity in stream surveys. In K. L. Dickson, J. Cairns, Jr., & R. J. Livingston (Eds.), Biological data in water pollution assessment: Quantitative and statistical analyses (ASTM STP 652, pp. 92-112). West Conshohocken, PA: American Society for Testing and Materials.
15.
Kambara, N. (1992). Study of the diversity indices used for programming analysis. Studies of Broadcasting, 28, 195-205.
16.
Kvalseth, T. O. (1991). Note on biological diversity, evenness and homogeneity measures. Oikos, 62(1), 123-127.
17.
Lasorsa, D. (1991). Effects of newspaper competition on public opinion diversity. Journalism Quarterly, 68, 38-47.
18.
Les, M., & Maher, C. (1998). Measuring diversity: Choice in local housing markets. Geographical Analysis, 30(2), 172-190.
19.
Lieberson, S. (1969). Measuring population diversity. American Sociological Review, 34, 850-862.
20.
Litman, B. R. (1979). The television networks, competition and program diversity. Journal of Broadcasting, 23(4), 393-409.
21.
Long, S. L. (1979). A fourth television network and diversity: Some historical evidence. Journalism Quarterly, 56, 341-345.
22.
Maly, M. T. (2000). The neighborhood diversity index: A complementary measure of racial residential settlement. Journal of Urban Affairs, 22(1), 37-47.
23.
McDonald, D. G. (1979). Cable television subscription and conceptions of social problems. Unpublished master’s thesis, University of Florida, Gainesville.
24.
Napoli, P. N. (1999). Deconstructing the diversity principle. Journal of Communication, 49(4), 7-34.
25.
Patel, G. P., & Taillie, C. (1982). Diversity as a concept and its measurement. Journal of the American Statistical Association, 77, 548-561.
26.
Pielou, E. C. (1975). Ecological diversity. New York: Wiley.
27.
Shannon, C., & Weaver, W. (1949). The mathematical theory of communication. Urbana: University of Illinois Press.
28.
Schramm, W. (Ed.). (1954). The process and effects of mass communication. Urbana: University of Illinois Press.
29.
Stauffer, J. R., & Reish, R. L. (1980). FORTRAN program for calculating Brillouin’s species diversity index. The Progressive Fish-Culturalist, 42, 185-187.
30.
Summers, H. B., & Summers, R. F. (1958). History of radio programming, 1927-1956 [mimeograph]. Columbus: The Ohio State University.
31.
Simpson, E. H. (1949). Measurement of diversity. Nature, 163, 688.
32.
Teachman, J. D. (1980). Analysis of population diversity. Sociological Methods & Research, 8, 341-362.
