The article “Identification of Cola Beverages” (Journal of Applied Psychology [1962]: 356–360) reported on an experiment in which each of 79 subjects was presented with glasses of cola in pairs and asked to identify which glass contained a specific brand of cola. The accompanying data appeared in the article. Do these data suggest that individuals’ abilities to make correct identification differ for the different brands of cola?

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Cola Coca-Cola Pepsi Cola Royal Crown 0 13 12 18 Number of Correct Identifications 1 23 20 28 2 24 26 19 3 or 4 19 21 14