Economically speaking, this woman's life (and that of her family) would have gotten progressively harder. The 1920s and, even more, the Great Depression were very hard on farmers.
Politically, the woman would be much more empowered at the end of this period. After all, women were not allowed to vote until 1920.
Socially, this would have depended a great deal on her age and how far she was from a town. In general, women came to have a great deal more freedom of action during this time, though. They would have had more of a chance to entertain themselves through radio programs and movies, for example.