Abstract: Methods and systems are provided for using comparative statistical tests to rank content attribute values for a target audience. In embodiments described herein, historical content and corresponding historical performance metrics are accessed. Attribute values of content attributes are determined from the historical content. A ranked set of content attributes is determined based on a computed impact of the attribute values of a particular content attribute on the corresponding historical performance metric. A ranked set of attribute values is determined by scoring each attribute value using a comparative statistical test to compare the historical performance metric of each content asset with the attribute value to the historical performance metric of each remaining content asset without the attribute value. The ranked set of content attributes and the ranked set of attribute values are displayed or utilized by a generative artificial intelligence model to generate content.