How to use the results of ANCOVA and make statistical inference?

Hi Yan,

I perfomed ANCOVA  and chose tukey as post hoc analysis to find the diffefence of 3 groups, however I don't know how to explain the results. 

An error occured when I tried to view the results of F.nii using dpabi viewer.

F_PairwiseDiff_Z_G1vsG2.nii can be viewed by dpabi viewer. In the viedeo you said the z value of  these images can be used for further voxel-wise multiple comparism, I guess you mean that I should calculate two sample t test again and use the z value for statistics? Sinc dpabi did post-hoc analysis after ANCOVA, why should I perform two sample t test again? Z value of whic voxle should I use for further multiple comparism since every voxel in the whole image of F_PairwiseDiff_Z_G1vsG2.nii  has a z value?

The erroe messege of viewing F.nii is as below:

错误使用 repmat
出错 y_AdjustColorMap (line 93)
    NewColorMap(Begin:End,:) = repmat(OriginalColorMap(iColor,:),[Segment 1]);
出错 w_OverlayList>RedrawOverlay (line 1354)
ColorMap = y_AdjustColorMap(ColorMap,...
出错 w_OverlayList>Accept_Callback (line 1423)
            OverlayHeader=RedrawOverlay(OverlayHeader, handles.MainFig);
出错 gui_mainfcn (line 95)
出错 w_OverlayList (line 42)
    gui_mainfcn(gui_State, varargin{:});
出错 @(hObject,eventdata)w_OverlayList('Accept_Callback',hObject,eventdata,guidata(hObject))
错误使用 waitfor
Error while evaluating uicontrol Callback



You can perform GRF correction on F_PairwiseDiff_Z_G1vsG2.nii .