HI guys, the AMOS forum is not working for a long time, hope you can help me here.

I am trying to compare 2 correlation to determine if one is significantly bigger than the other - let's say the correlations between X and Y at two ages (same participants). because it's data from the same participants over time.the analysis should be dependent, so I am trying to do it with AMOS.

problem is, when I draw a path (single-headed arrow) between the variables i can't draw the covariance (double headed arrows), and vice versa. the lines just refuse to connect. I would realy appreciate your help here so I can finnaly finish my thesis! any advice (including some other way to test this) would realy help.