2019年系列讲座课件10PlanningDataAnalysisandCompletingtheDesign.ppt

* * * As you review the material, you will begin to make notes. It helps to read a few to get a sense of what is there and develop a general framework for analyzing the rest of the data. However, you may discover other themes as you go along and may have to re-read earlier material. Some people find it helpful to use a spreadsheet that identifies the common themes and where they are located in their notes. Other people use note cards to sort through the qualitative data. * . These are text-oriented database managers, word processors, or automatic-indexing software. They are specifically developed for working with text applications. When you enter transcripts into a word processor, they can be organized, indexed, and coded. Qualitative analysis software can be a powerful tool for organizing vast amounts of data produced through focus groups or individual interviews. These software programs are called Computer-Assisted Qualitative Data Analysis Software (CAQDAS) — also sometimes simply called Qualitative Data Analysis Software (QDAS or QDA software.) Programs of this type help you visualize the relationships between and among data and/or theoretical constructs to support theory-building. * An excellent resource with step-by-step guides for how to do systematic qualitative data analysis (descriptive, causal, and other) is Miles and Huberman’s book, Qualitative Data Analysis: An Expanded Sourcebook. * Typically, descriptive statistics are used to summarize data collected from a sample about a qualitative or qualitative variable, while inferential statistics involve making a prediction about a range of population values for a quantitative or qualitative variable, based on information for that variable from the random sample. Part of the prediction includes a reliability statement which tells the probability that the true population value lies within the range of values. * * The median is defined as the value of the variable where half of the observations are abo