Hard to say without knowing which airline we're talking about, as different companies have surprisingly different procedures. Not a trainer myself, but been a No1 for long enough to know that stuff like stowage of handbaggage, securing the cabin for take-off and landing and general SEP/First Aid knowledge is noticeable enough to the experienced eye when done wrong to fail a check. Sounds like your partner's got very little to worry about though, good marks on the ab-initio are a reliable sign that someone's got their head screwed on! If in doubt, look at the manual!
Sure there are better-qualified people than me that could give better advice than this, but best of luck anyway, she'll be fine!
Cynical Steward