ITEC 3230 Lecture Notes - Activity Theory, Percentile, Data Analysis
17 Apr 2013
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Document Summary
Quantitative (except for open-ended questions: observation. Filter into different data sets (e. g. per age) Demographics, time spend on task, # of people involved. Mean: add up values and divide by number of data points (be careful with that!) Median: middle value of data when ranked. Mode: figure that appears most often in the data: percentages, graphical representations give overview of data. Number of errors made e d a m s r o r r e f o r e b m u. 2 or 3 times a week once a month e d a m s r o r r e f o r e b m u. Boxplots are very good for comparing treatments/ designs! Simple qualitative analysis: unstructured - are not directed by a script. Rich but not replicable: structured - are tightly scripted, often like a questionnaire. Replicable but may lack richness: semi-structured - guided by a script but interesting issues can be explored in more depth.
