I am most apprehensive about dealing with literature reviews.  It seems that this part of answering a political science question requires a significant amount of reading.  In addition to the time-consuming nature of crafting the literature review, it appears that the literature review may also cause the political scientist to slightly change the question that he originally sought to answer, depending on whether previous scientists have already answered that question.  I am also concerned with the process of gathering and analyzing data.  I fear that the data I need to test a given hypothesis may not exist.  I am also apprehensive that I may utilize a faulty method of analysis, or not account for all relevant control variables.