Slides Q&A: Slides - How can we improve empirical research on understanding visual information?

Charles Perin
11:27 AM
This panel about empirical research is clearly a panel about quantitative methods for conducting empirical research. Any advice regarding when and why use quantitative methods and when and why use qualitative methods? Remember this discussion about precision vs generalizability vs realism this week
19 up votes
0 down votes

Amelia McNamara
10:55 AM
What are the best practices for statistical analysis in the vis field? Should we be doing t-tests? Randomization tests? Reporting effect sizes? Confidence intervals?
16 up votes
0 down votes

Chat Wacharamanotham
11:05 AM
Ronald's recommendation is to have multiple hypotheses and multiple conditions, resulting in more complex experimental designs. Pierre advocates simple experimental design to allow straight-forward statistical analysis and plotting effect sizes visually. How can we reconcile these recommendations?
11 up votes
0 down votes

Anonymous
10:43 AM
How can we educate reviewers on basics of cognitive or perceptual techniques, especially in sci vis where user evaluation is less common
8 up votes
0 down votes

Ben Shneiderman
10:57 AM
I think it is counterproductive to separate Understanding & Application. Kurt Lewin (social psychologist) wisely said: if you want to understand something, try to change it. I'm tired of researchers hiding behind the "understanding" wall, when they would do better if they got our & tried to change
8 up votes
0 down votes

Pierre Dragicevic
11:10 AM
What are your techniques for not fooling yourself?
8 up votes
0 down votes

Robert Kosara
11:15 AM
Isn't it amazing that the WHY is not researched more? What does that say about visualization being a science?
7 up votes
0 down votes

Steven Franconeri
11:22 AM
What could vision scientists discover that would most impact vis? What problems should we inspire them to go solve?
7 up votes
0 down votes

Pierre Dragicevic
11:09 AM
What vision does *not* tell us about visualization?
6 up votes
0 down votes

Anamaria Crisan
11:00 AM
P value hacking means missing some really interesting effects in the data because pvalues only tell us how much evidence we have to support the effect in *our* data - so we miss cool but not significant effects. So I push back, is there ever really a good time to p-hack?
5 up votes
0 down votes

Robert Kosara
11:21 AM
Confidence intervals are analogous to p-value testing, but aren't they much more informative? Especially when there is no significant difference?
5 up votes
0 down votes

Wolfgang Aigner
11:36 AM
What are good starting points for learning how to do Bayesian analysis?
5 up votes
0 down votes

Michael Correll
11:38 AM
We seem to have a stats problem (wrong stats), a methods problem (wrong studies), a steering problem (wrong research questions), and a culture problem (wrong incentives). Is there anything that we're doing better than our peers in other fields?
5 up votes
0 down votes

Karthik Badam
11:40 AM
How do you ensure that the "priors" that you choose are appropriate for your experiment setup? Considering that in VIS even when we are building on a previously published experiment there might be differences in the visualization design. Could you provide any resources or suggestions?
5 up votes
0 down votes

Laura Matzen
11:17 AM
What are some of the top research questions that visualization researchers want cognitive scientists/vision scientists to answer? In other words, what kinds of information about vision and cognition would be most useful for the visualization field?
4 up votes
0 down votes

Anonymous
11:32 AM
How can we prevent against prior-hacking in bayesian statistics? :)
4 up votes
0 down votes

Shaun Kurian
10:38 AM
What is the weight significance of eye tracking as opposed to user evaluation surveys and interviews? Could eye tracking offset the lack of numbers in usability studies and provide a more empirical value?
2 up votes
0 down votes

Eamonn Maguire
10:43 AM
Even though we have a simple visual encoding in English (an alphabet), the ambiguity in how we extract information from a text is often amazing. What can we learn from the humanities in this respect.
2 up votes
0 down votes

Anonymous
11:03 AM
How to measure "How creative / supervise / inspired" subjects are when they use my visual analysis tools. And how to compare it with alternatives?
2 up votes
0 down votes

Anonymous
11:36 AM
Infoviz studies need to measure performance metrics as well as user perception and experience metrics. But a lot of current rigorous statistical analysis are more applicable to performance metrics rather than user perception and user reported metrics. So how do we resolve that? Should we even try?
2 up votes
0 down votes

Eamonn Maguire
11:38 AM
I would argue that using old techniques is not a bad thing. Using old techniques badly is the problem. P values are fine, if only people didn't apply them blindly.
2 up votes
0 down votes

Geoffrey Ellis
11:25 AM
How do we find Ronald's 'fruit flies' in the context of participants for empirical studies?
1 up vote
0 down votes

Jessica Hullman
11:32 AM
Pierre's biovis keynote on visualizing results: https://www.lri.fr/~dragice/statistical-dances/assets/player/KeynoteDHTMLPlayer.html Description: http://aviz.fr/badstats#sec0 Matt's work on why bayesian stats better matches HCI culture and incentives: http://www.greglnelson.info/chi_2016_bayes.pdf
1 up vote
0 down votes

Anonymous
11:38 AM
Need a few good resources for students. Where are they?
1 up vote
0 down votes

Sam Quinan
11:45 AM
How confident can we really be about the generalizability of identified effects across populations? Specifically, to what extent should or shouldn't we be expecting effect differences between the general public and a given community of domain experts?
1 up vote
0 down votes

Sara Borthwick
10:47 AM
With Microsoft's announcement yesterday that Paint will support 3D and AR headsets will start at $300, making 3D visuals accessible to mass market and non-Vis audiences, do you think that there will be boom in 3D infovis research? What would be the big questions?
0 up votes
0 down votes

Bilal A
11:11 AM
Can we learn underlying principles by studying perception in 5-year old humans? Or animals? Do they have cognitive bias?
0 up votes
0 down votes

Geoffrey Ellis
11:19 AM
Where do we find Ronald's 'fruit flies' in the context of participants for studies? If you can offer grade points to your students then great but that's a luxury to many of us have to make use of AMT with all its problems and cost.
0 up votes
0 down votes

Anonymous
11:52 AM
This discussion should be further had and explored in our respective labs. Will the slides be available somewhere for future support ?
0 up votes
0 down votes

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