Listing computer skills on CV for grad school?

<p>How should I list computer skills/software packages that I am experienced with, but not 100% comfortable with on my resume/CV?</p>

<p>For example, in SPSS I feel very confident with my ability to write my own scripts from scratch for this program in order to analyze data. However, with SAS and MATLAB, if someone gives me a script for one of these and tells me "modify this so that it can do X, Y, and Z", or "this script should do A, B, and C, but for some reason I am getting an error, can you take a look at it?" then I can probably do that. However, I do not feel totally comfortable in my ability to write scripts from scratch in these languages.</p>

<p>I was thinking something like:
-Proficient in SPSS
-Experienced in SAS and MATLAB</p>