These comparisons of probabilities are very similar to the analyses that can be carried out by odds and odds ratios (see Hagenaars, 1993). Exactly as the corresponding odds ratio, this ratio shows that it is much less probable (.06 times as probable) to be judged dyslexic than normal by A, if B rates normal. One advantage of multiplicative parameterization is that these (conditional) probabilities can be calculated just by means of the T parameters. The value of a x parameter does not depend on the sample size but is a mere reflection of the structure between the variables. A more detailed introduction to the meaning of the x parameters and their relation to the concept of odds and odds ratios lies beyond the scope of this chapter but can be found in the contributions of Agresti (1990), Bishop et al. (1975), Christensen (1997), Fienberg (1980), Haberman (1978, 1979), Hagenaars (1990, 1993), Knoke and Burke (1980), Reynolds (1977b), Sobel (1995), and Wickens (1989).

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