Strategies for data analysis


So, in the past couple of videos, we’ve  made a solid plan for collecting your data.   But raw data on its own can’t  answer your research question. The last step of designing your research  is planning your data analysis strategies. In quantitative research, you have  to decide which calculations and   statistical tests you’ll use to analyze the data. In qualitative research, you  should consider what approach   you’ll take to categorizing  and interpreting the data. Let’s take a closer look at some  common approaches to data analysis.  If you’re doing quantitative research, you’ll  probably be using some kind of statistical   analysis. With statistics, you can: Summarize your sample data,  Make estimates about the population, And test hypotheses. For example, if you’re collecting  data on students’ test scores,   you’ll probably want to calculate descriptive  statistics like the mean, which describes   the average score, and the standard deviation,  which describes the variability of the scores. Then, to test a hypothesis about a relationship  between variables, you can use a statistical test. Regression and correlation tests look for  associations between two or more variables.  Comparison tests, such as t-tests and ANOVAs,   look for differences in the  outcomes of different groups. Your choice of statistical test depends on  various aspects of your research design,   including the types of variables you’re  dealing with and the distribution of your data. If you need a refresher, check out our  articles on choosing the right test.  In qualitative research, your data will usually  be very dense with information and ideas. Instead of summing it up in numbers, you’ll  need to comb through the data in detail,   interpret its meanings, and extract the parts  that are most relevant to your research question.   There are many approaches to doing this. One common approach is thematic analysis,  which focuses on finding patterns in the data.   You label recurring topics or concepts  and then group them into broad themes.

Another common approach is discourse analysis,  which pays more attention to things like social   context and structure. You analyze not  only what is said, but also how it’s said. To get a sense of how researchers  analyze qualitative data,   try reading some qualitative  research papers in your field.  We're almost done! Here's a final tip if you  need more help with your research, our Knowledge   Base has got you covered. Check it out here! And that’s it – you’ve got yourself a research   design! It's been a great journey with  you, hope to catch you in our next videos!.