Data collected by Jansen et al. in their study, Evaluating the Efficiency of Physical Visualizations which investigated factors contributing to the efficiency of physical visualizations.
Format
A data frame with 512 observations and 19 variables:
- subject
Subject identifier
- group
Group / experiment session number in which the participant was involved in the experiment
- formerSubject
Yes/No. Whether subject had participated in a previous experiment conducted by Jansen et al.
- conditionrank
- modalityname
Name of the modality of interaction. One of "Virtual Mouse", "Virtual prop", "Physical touch", "Physical no-touch"
- repetition
1/2. Whether the participant was interacting with the visualization for the first time. Participants interacted with visualizations of two different datasets and this variable stores the order.
- modality
Index of the modality of interaction
- question
Index of question asked to the participant as part of the experiment. Each participant was asked 4 questions. All questions involved a comparison task.
- trial
Each participant performed 32 trials. Participants answered 4 questions for 8 different datasets which resulted in 32 trials per participant.
- datasetname
Each participant was presented with 8 different datasets through the visualizations. These were: "army", "carmortality", "education" "externaldebt", "grosscapital", "health", "hiv", "military"
- readingTime
Time taken by participant to read the visualization in seconds
- error
If the question was answered correctly by the participants.
- duration
If the question was answered correctly by the participants.
- perceivedDifficulty
Self reported perceived difficulty of the task by each participant.
- perceivedTime
Self reported perceived time taken to perform the task by each participant.