[FieldTrip] Unbalanced sample size

[Schoffelen, J.M. (Jan Mathijs)]

Hi Nadia,

In general, but other may chime in here, I would say that the numbers themselves are not the biggest issue here. What you should ensure is that both groups are as equal as possible w.r.t. all kinds of demographic etc. parameters, such as age, education level, handedness etc. If this is not balanced to begin with, I wouldn’t be worried about a disbalance in numbers.

Best wishes,

Jan-Mathijs



On 22 Sep 2020, at 23:01, Nadia Youssef <nadiayoussef635 at yahoo.com<mailto:nadiayoussef635 at yahoo.com>> wrote:

Hi everyone,

In my dataset, I have an unequal number of Normal and MCI (MCI=30, Normal=50).
In which, this unbalanced sample size will affect the analysis (Brain network analysis) and any idea on how to solve this issue?



Best regards,

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