Hello
If you provided specific examples of these research methods & memory questions, we'd be able to offer much more targeted help. With that being said, I recommend you gain familiarity by answering memory and research methods questions separately. You will find that these integrated questions are just testing how well you can apply your knowledge to different scenarios & experiments. This comes with repeated practice. If you can learn to apply your knowledge to different scenarios and you are adept at dealing with research methods, then you will be much more prepared to tackle integrated questions with ease. If you are finding these difficult, I suggest you practise both concepts independent of each other before attempting them. You will find that research methods requires you to repeat the same content, but in slightly varied settings that you can expose yourself to before the SAC. As with any question, identify what you need to write to get the marks, which will make it significantly easier for you to answer it. Research methods is very commonly interweaved throughout any and all content in your exam, and likely in your SACs as well, so with more exposure to these questions you will gain confidence and the ability to write down exactly what will give you the marks.