The_Observer_product_presentation_ed

The_Observer_product_presentation_ed - Measuringbehavior...

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Measuring behavior What is behavior?  Activities, tasks  Interactions Social Sexual  Gestures  Facial expressions  Vocalizations, speech  Movement  Body posture  Physiology Why measure behavior? Understand processes  Compare groups, treatments  Statistical testing: Frequencies Durations  Latencies Transition matrixes Interaction matrixes Time patterns
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Measuring behavior What is behavior?  Activities, tasks  Interactions Human-Technology Social  Gestures  Facial expressions  Vocalizations, speech  Movement  Body posture   Physiology Why measure behavior?  Improve usability Effectiveness Efficiency Satisfaction  Improve user experience  Improve safety  Improve turnover / save money  And much more!
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Example: describe what you see
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Measuring behavior A human observer  watches  the behavior of the subjects and  writes  down the observations on paper and uses a  clock  for time-information. Disadvantages: While writing, no observations Subjective data Small recording capacity Labor intensive analysis And more… the pioneer’s way…
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Solution: an event recorder Create a  coding scheme  before or during the observations  and annotate behavior by a simple key press. This will result in an  event-log  which contains  time- stamped  events that can be  synchronized  with multimodal  data:  Videos (one or more)  Physiological data  Eye tracking data  Etc. The Observer XT for structured observations
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Behavioral data: example  Mother sits reading, child plays while lying on the floor. Child  speaks, mother smiles. Child quits playing and sits up. Mother  speaks and stands up.  One timeline Mother’s behavior Child’s behavior
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Coding with The Observer  Record  who  does  what, where,   when   and  how/to whom Objective, quantitative data Automatic time recording  Rich data: behavior groups, subjects, modifiers Minimize the number of codes – fewer errors, faster  coding, faster learning  Link with video and other data  Calculate frequencies, durations, transitions, time budgets,  synchronization, interaction patterns, hierarchies…
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Recording data 1 2 3 4 5
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The_Observer_product_presentation_ed - Measuringbehavior...

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