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For those covered by all search engines, a further analysis was carried out on the number of pages that were indexed in order to determine if the representation is equal across countries on this measurement. Four two-way analysis of variance tests were carried out for the four types of domains. The dependent variable was the number of pages indexed, while the two independent variables were country and search engine.
The frequency distributions of the dependent variable for all four domains were skewed, which violated the normality requirement of a two-way analysis of variance test.