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This study is not the paradigm-shift that Lloyd reports. For a real eye-opener about the problematics of even asking the question "why women stay" see Loseke and Cahill (1984). The question does not "[confound] even domestic experts," since those like Loseke and Cahill criticized reducing the complexity that is domestic violence into such a loaded question over twenty years ago.
I mean, if Stark is purporting a new theory ("cohesive control"), then he isn't as much breaking out of the "why women stay" paradigm, but is just looking at the abuser side of it more closely (which heavily populate both psych and soc lit).
By even engaging the question "why women stay" is akin to the "pro-life" rhetorical frame, the assumptions about women in both are dangerous.