Suggested differences if the question was >8 marks
if this was a 12 marker it would be band marked (ATCHOO-BC)
you would need AO3 chains of reason relating to strengths and weakness of the case study as a research method, which relate specifically to Lavarenne et al (2013) and carry forwward your accurate and thorough AO1 knowledge and understanding of procedural details of this study
you would need to ensure that you have argued against the point that you have just made at some point in the answer, to tick the competing arguments box
you would need a balanced conclusion, if it was a 20 marker you need to take considerable time over your “nuanced” conclusion.