The issue of sample quality is important in regards to determining reliable and representative soil parameters for fine-grained soils. In the literature, there exist several assessment criteria that can be used to assign a degree of confidence to laboratory parameters, such as the strength and stiffness. In this paper, two commonly used methods for assessment of oedometer tests are compared in light of laboratory results for a low plastic Norwegian sensitive clay. The results show that the conclusions drawn from these two methods differ significantly from each other. Possible reasons for discrepancies between the methods of the sample quality assessment are discussed.