What are the personality and biopsychosocial factors underlying problems X, Y and Z exhibited by Karen? Would an intervention involving X, Y and Z be suitable for addressing Karen’s issues?

[Revision] Individual difference

Research Questions
As you are preparing an exploratory case study involving a single participant/organisation, the findings will be quite context specific. Therefore, your research questions should ideally name the individual mentioned in the case study. For example, “What are the personality and biopsychosocial factors underlying problems X, Y and Z exhibited by Karen?”

In addition to including a few research questions relating to contributing factors, make sure you include a question that poses the evaluation of a specific intervention. For example, “Would an intervention involving X, Y and Z be suitable for addressing Karen’s issues?”

Methods
Per the Assessment Brief, Section 3 of the assignment (i.e., Intervention) is where you will provide details of the methods you are going to apply. Using sub-headings is perfectly acceptable (e.g., Research Questions, Research Design, Intervention Overview, Assessment, etc).
Research Design: Either a quantitative or mixed-methods design is acceptable. Details and a brief justification should be provided.

Intervention Overview: The intervention can be based on a single approach or be multifaceted. Examples of approaches you may want to draw on include psychotherapy (which type – be specific), aptitude training (be specific), social prescribing (e.g., joining group activities aligned with the individual’s interest), leveraging support from networks of family/friends, psychopharmacology (be specific), etc. Also, remember to make use of solutions that might be available via the university/school/organisation. Include timescales and if wished, you can include different intervention phases. As noted in the Assessment Brief, your choice of intervention should be suitably justified and align with the discussion in Section 2 of your report.