Question: An I Ã J table has ordered columns and unordered rows. Ridits (Bross 1958) are data-based column scores. The jth sample ridit is the average

An I Ã— J table has ordered columns and unordered rows. Ridits (Bross 1958) are data-based column scores. The jth sample ridit is the average cumulative proportion within category j,

j-1 Σ p. P+, k=1

The sample mean ridit in row i is RÌ‚_i = ˆ‘_j rÌ‚_j p_j|i. Show that = ˆ‘_j p_+j rÌ‚_j = 0.50 and ˆ‘_i p_i+RÌ‚_i = 0.50.

j-1 p. P+, k=1

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