You don't want to use any forms that are passive: familiar with, know, assigned to, responsible for. A cv needs to use action verbs, telling what you did and why it was valuable. From your information, you might want phrases like: Created software application using z-tree to explore economic conditions in ... Analysed data using nonparametric statistical methods, leading to .... Applied game theory to the study of ... Discovered link between ... and ... using SPSS and Stata. So Use action verbs Describe actions and results Use a parallel structure.

I understand that you want your wording to be more uniform. May I ask you to give more information about what you want to communicate? Are you trying to use different words to say similar things about your skills? For example do you have knowledge, are skilled in, are familiar with, and have experience in all these things? Will you describe your experience and level of expertise more? That would help me give you words and phrases to make a good impression. A little bit of information of what kind of position or job you are looking for would be helpful too.