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UCHIC / SurveyDataViewer

A web application for visualizing the results of social science survey data.
BSD 3-Clause "New" or "Revised" License
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Mean Result View #27

Closed AmberSJones closed 9 years ago

AmberSJones commented 9 years ago

Requested is a view for the mean score response to a question. This would include error bars and would be based on scores falling in the midlines of each category box. This feature is lower priority than the others that we discussed on 4/8.

horsburgh commented 9 years ago

We could also implement this as a separate view if it clutters the existing view too much and if the category box midpoint issue is confusing.

Maurier commented 9 years ago

@AmberSJones , @horsburgh , Could one of you draw me a graphical example of this feature so I can understand the idea?

AmberSJones commented 9 years ago

Yes, I'll take a stab at it.

AmberSJones commented 9 years ago

This is what I am envisioning for the mean score if implemented as a separate view. The mean score should be calculated for each row and displayed (This should be the same value that you are using to give values for the heat map). The small tick marks represent the error bars, though Doug needs to tell us the preferred method for calculation, so no need to implement yet. @horsburgh , feel free to weigh in.

image

Maurier commented 9 years ago

Can we just hide 'Not sure' columns in this view?

Also, will this view work with interval-like questions only, like the heat map does? Edit: I think we should treat it as a particular feature for each question that can be specified in the codebook like we do for the heat map.

AmberSJones commented 9 years ago

Yes, I think we can hide the 'Not Sure' column, though we might want to check with Doug and Courtney to see if there is a good way to represent it.

I do think the mean determination only works for interval-type questions, but as you mention, it's probably best to treat it as a feature for each question that is specified in the codebook.

Maurier commented 9 years ago

Sounds good, I'll hide them from now. If we need them later I'll update the code.

Maurier commented 9 years ago

Basic functionality (only mean value) for this feature is now ready for testing on sandbox.

Do the tick bars next to the mean correspond to the margin of error for a sample proportion? If so, what confidence level should I use to calculate it?

AmberSJones commented 9 years ago

Yes, the tick marks on either side of the mean correspond to some margin of error or spread for the sample. I'll email Doug to see what measure we should use to determine it... I'm not sure if they would envision it as a standard deviation or a confidence interval or what.

I'm going to close this issue for now- the mean value view is well-implemented.