I think one issue your wife may be having is trying the long, slow DA trigger pull on an accuracy-based target (bullseye). Get her some man-sized targets (they make some nice zombie ones now for fun), and let her try a "hurried" rapid-fire DA trigger pull at action-distances (~ 7 yards or less) and quit concentrating on the exact bullsye and 10-ring and instead concentrate and shoot for center of mass rapidly. Don't try to make her NRA pistol master accurate, just make her "killed the bad guy" accurate and see how she does. Most people trying the long, slow, heavy DA trigger pull will end up shaking the gun and be a lousy shot. But have them snap off 6-shots from a DA revolver at a "threat" target, and she may do pretty well and learn to be confident with it. Then you can work on NRA-accuracy ratings later....