Low. Generally, Alternate History stories are not concerned with science and technology, or at least not the specifics. Science and technology may be a key point of difference in the alternate world, but with a few exceptions, science and technology is rarely the focus.

High. Alternate History stories postulate a world that has developed differently than our own, which necessitates a commentary on the alternate world and thus our own. Often social, political, environmental, or industrial implications are explored in great detail.

Variable. There are many ways to tell an Alternate History story. Some are character centered, where the reader follows a specific character through alternate timelines or the story focuses on a character in an alternate timeline, rather than the events. However, characterization may be lost at the expense of plot development and exploration of social implications.

High. A strong plot is necessary to world-building in Alternate History stories because the reader must have a strong understanding of how the timeline has been altered.

Variable. The level of violence is really going to depend on the focus of the story and the point in history the changes. However, with various wars and political events serving as points of divergence, violence is not uncommon in Alternate History stories.