I have conducted two user studies and in my studies I didn't have control over the group sizes. In each study users were put in groups and they were asked to perform some group activities. Here is the way the groups were arranged:
- Study 1 (Control Groups): In this study 20 people participated. The participants were in 2 groups of 4 people, and 4 groups of 3 people.
- Study 2 (Modified Groups): In this study 25 people participated. The participants were in 5 groups of 4 people, and 3 groups of 3 people.
I have gathered two kinds of data during my study:
- Individual data. For example the number of ideas that each person put forward.
- Group related data. For example the time group spent to do something.
I am looking for a method which helps me combine the results for each study and then compare the results. I was wondering if anyone could help me with this ?
More information about the task and data:
The task is Brainstorming ideas about a specific topic. The topic is the same between all of the groups. Users work in a software that I wrote. Test groups see a different version of the software. I am measuring the time it took the group to generate 10 ideas, and I want to see if software version had an effect on it or not. But the main problem is having groups of 3 and groups of 4 users.